A comparison of the sialochemistry,oral pH,and oral health status of down syndrome children to healthy children

International Journal of Paediatric Dentistry 2010; 20: 235–241 Background: The aetiology of low caries incidence in Down syndrome (DS) children is not entirely clear. Aim. To compare sialochemistry and oral mucosal pH between Down syndrome children with caries (DS‐Ca) and caries free (DS‐CaF), and healthy children with caries (C‐Ca) and caries free (C‐CaF). Design. The study group comprised 70 children with DS (mean age 4.41 ± 1.9 years); 32 healthy children (mean age 9.22 ± 2.7 years) served as control. Groups were further subdivided according to caries status: DS‐Ca, DS‐CaF, C‐Ca and C‐CaF. Sialochemistry analysis included calcium (Ca), sodium (Na), potassium (K), and chloride (Cl). Mucosal pH, plaque and gingival indices (PI and GI), and caries status were recorded. Results. DMFT/dmft were significantly lower in the DS group. Cl and Ca levels were significantly higher in the DS‐Ca compared to the C‐Ca and the C‐CaF children. Na and K were significantly higher in DS‐Ca group compared to DS‐CaF group. PI and GI were significantly higher in DS‐C children compared to DS‐CaF children. Conclusions. DS may manifest itself in the salivary glands. Consequently, different electrolyte salivary environment may form, leading to lower caries rates among DS children.     

Oral health status of adults with Down syndrome in Hong Kong

The aim of this survey was to study the oral health status of Hong Kong Chinese adults with Down syndrome (DS). Sixty‐five community‐dwelling adults with DS (aged 17 to 42 years, 26.8±6.4) and age‐and gender‐matched contrais attending a dental hospital were included in a cross‐sectional survey. The subjects with DS had fewer filled (2.4±4.6 vs. 2.7±3.1, p=0.017) and fewer decayed (1.1±2.5 vs. 1.7±2.4, p=0.007) teeth than the control subjects. Significantly more peg‐shaped maxillary lateral incisors and retained primary teeth (p<0.001) were observed in subjects with DS, compared to the control subjects. Adults who had DS had a significantly higher percentage of surfaces with detectable plaque (81.5±19.1 vs. 61.9±16.0. p<0.001) and a higher percentage of sites with bleeding on probing (76.3±25.8 vs. 55.6±21.4, p<0.001). A higher proportion of subjects with DS showed one or more occurrences where probing pocket depth was ≥6mm than control subjects (49%vs. 24.5%, p<0.021). In conclusion, while having fewer caries, Hong Kong Chinese adults with DS had poorer periodontal health than age‐ and gender‐matched control subjects.     

Dental caries prevalence and treatment needs of 5- to 12-year-old children in relation to area-based income and immigrant background in Greece

Objectives: To investigate the association between certain socio‐demographic characteristics and dental health status of 5‐ to 12‐year‐old children attending public kindergarten and primary schools in Piraeus, Greece. Methods: Gender, age, place of residence, immigrant background and area‐based income were associated with dental caries prevalence, treatment needs and oral hygiene level in 5,116 children. Results: The mean number of decayed, missing and filled deciduous teeth (dmft) and Unmet Restorative Treatment Needs Index (UTN) at 6‐year‐olds were 1.54 and 84.6% respectively, and the DMFT and UTN at 12‐year‐olds were 1.35 and 71.8%. Caries experience/severity significantly increased with age, whereas treatment needs and oral hygiene level decreased (P < 0.001). Immigrant background and low area‐based income was associated with poorer oral health outcomes. The above associations retained statistical significance after multivariate analysis. Children who live in areas with lower average income present 1.20 to 2.14 greater risk of having higher caries severity and poorer oral hygiene in comparison to those living in more affluent areas, and children with an immigrant background have 1.68 to 4.34 higher likelihood to present higher dmft and DMFT values, higher unmet treatment needs, and poorer oral hygiene levels compared to their Greek counterparts above and beyond the effect of the other risk factors assessed. Conclusions: The present study revealed a socio‐demographic gradient in oral health status and treatment needs of children in Piraeus, Greece.     

Results of a 20-year oral hygiene and prevention programme on caries and periodontal disease in children attended at a private periodontal practice

To cite this article:
Int J Dent Hygiene 9 , 2011; 155–158
DOI: 10.1111/j.1601‐5037.2010.00455.x
Chambrone LA, Chambrone L. Results of a 20‐year oral hygiene and prevention programme on caries and periodontal disease in children attended at a private periodontal practice. Abstract: Objectives: The objective of this study was to evaluate the long‐term effect of an oral hygiene and prevention programme on caries and periodontal disease in a group of children attended at a private periodontal practice. Methods: A total of 50 systemically healthy children, 25 males and 25 females, 03–13 years old, were invited to join a long‐term plaque control programme. All children had no caries and had no evidence of clinical bone loss. The participants were selected amongst children whose parents (mother, father or both) were treated of gingivitis, aggressive periodontitis or chronic periodontitis in a private periodontal practice. Subjects were separated in groups according to their parents’ periodontal diagnosis, i.e., gingivitis, aggressive periodontitis or chronic periodontitis. The following outcomes were evaluated: a) probing depth, b) plaque (PI) and gingival (GI) indexes. The plaque control programme applied consisted of a regular maintenance regime at 6‐to 12‐month interval with an experienced periodontist. Results: In total 30 subjects fulfilled the 20‐year period of maintenance. The mean recall frequency was 6.4 (± 3.1) months, and the mean PI and GI were 0.4 (± 0.3) and 0.3 (± 0.3) respectively. The average rate of caries lesions was 1.0 (± 1.4). None of the patients exhibited clinical or radiographic evidences of alveolar bone loss, and no tooth was lost by caries. In addition, there were no statistically significant differences between groups (P > 0.05). Conclusions: Adequate oral hygiene measures and periodic professional plaque control led to low levels of dental plaque, gingivitis and caries lesions.     

Dental caries status and salivary properties of asthmatic children and adolescents

International Journal of Paediatric Dentistry 2011; 21: 185–191 Aims. This study aimed to investigate the dental caries status and salivary properties in 3‐ to 15‐year‐old children/adolescents. Methods. The sample was split in two groups: asthma group (AG), composed of 65 patients who attended Public Health Service; asthma‐free group (AFG), composed of 65 nonasthmatic children/adolescents recruited in two public schools. Stimulated salivary samples were collected for 3 min. Buffering capacity and pH were ascertained in each salivary sample. A single trained and calibrated examiner (kappa = 0.98) performed the dental caries examination according to WHO criteria. Results. The AFG showed salivary flow rate (1.10 ± 0.63 mL/min) higher (P = 0.002) than AG (0.80 ± 0.50 mL/min). An inverse relationship was observed between asthma severity and salivary flow rate (Phi coefficient, rφ: 0.79, P = 0.0001). Children with moderate or severe asthma showed an increased risk for reduced salivary flow rate (OR: 17.15, P < 0.001). No association was observed between drug use frequency (P > 0.05) and drug type (P > 0.05) with salivary flow rate. Buffering capacity was similar in both groups. No significant differences were encountered in dental caries experience between AFG and AG groups. Conclusions. Although asthma can cause reduction in flow rate, the illness did not seem to influence dental caries experience in children with access to proper dental care.     

Trends in oral hygiene, gingival status and dental caries experience in 13-14-year-old Jordanian school children between 1993 and 1999

Aims : The aim of this survey was to describe the trends in oral hygiene, gingival condition and dental caries prevalence in 13–14‐year‐old northern Jordanian school children. Method : A dental survey was conducted in 1999, similar to one carried out in 1993, utilising 10 schools (666 pupils) and 20 schools (1,695) with children of 7th grade, respectively. These schools were chosen by a simple random method from the five geographic areas of the city. All participants had dental examinations for oral hygiene, gingival condition and dental caries experience using the Silness and Löe plaque index (PI.I), Löe and Silness gingival index (GI) and decayed (D), missing (M) and filled (F) teeth (DMFT) and surfaces (DMFS) codes, respectively. Results : Boys had higher plaque and gingival scores than girls in both groups. The mean PI.I and Gl scores of males and females were significantly higher in the 1993 survey than in 1999 (P < 0.05). Also, male and female children examined in 1993 had significantly higher caries experience, as measured by DT, DS, DMFT and DMFS scores than in 1999 (P < 0.01). No differences were found between M and F values of both groups. It is concluded that oral hygiene, gingival condition and dental caries has improved since 1993.     

Oral health status of 5-year-old Aborigine children compared with similar aged marginalised group in south western India

Objective: To compare and assess oral health status of 5‐year‐old Aborigine children with similar aged, marginalised children in coastal region of south western India. Materials and methods: A total of 418 Aborigine children were invited to participate in the study and a total of 428, 5‐year‐olds were selected randomly for comparison from other government schools to form the other marginalised group. The WHO (1997) proforma was used for clinical examinations. Chi Square test was used to compare between categorical variables. Mann–Whitney U‐test was used for comparison between the two groups for quantitative variables. Logistic and linear regression analysis was performed to determine the importance of the factors associated with caries status. Odds ratio was calculated for all variables with 95% confidence intervals. P ≤ 0.05 was considered as statistically significant. Results: Dental fluorosis was present in 50 (11.9%) Aborigine children, whereas in the other marginalised group 7 (1.6%) children had dental fluorosis (P ≤ 0.001). Untreated dental caries was 76.3% for the Aborigine children and 70.3% in the comparison group. Mean dmft values in the two groups were 4.13 ± 3.90 and 3.58 ± 3.60, respectively (P > 0.01). High frequency of between‐meal sugar consumption was related to dental caries (OR = 1.20; P = 0.001). Utilisation of dental care and dental fluorosis were inversely related to dental caries (OR = 1.16; P = 0.001 and OR = 1.91; P = 0.001). Conclusion: The study revealed poor oral health status among both the marginalised groups. Significant differences were noted between the two groups with respect to oral hygiene practices, dietary habits, and dental utilisation pattern. Schools for tribal children, male gender, low frequency of cleaning teeth and higher in between‐meal sugar consumption were significantly related to dental caries.     

Prevalence and severity of dental caries in Libyan schoolchildren

Objectives: To assess prevalence and severity of dental caries, examine gender differences and assess the relationship of dental caries to socioeconomic status in a group of Libyan schoolchildren. Design and setting: A cross sectional observational study with cluster sampling within schools. Participants: A random sample of 791, 12‐year‐olds in 36 elementary public schools in Benghazi. Methods and main outcome measures: Dental caries was assessed using the DMFT and DMFS indices and WHO (1997) criteria. Information about socioeconomic status was collected through a dental health questionnaire. Results: The prevalence of dental caries was 57.8%. The mean DMFT and DMFS indices were 1.68 (SD ± 1.86) and 2.39 (SD ± 3.05) for all subjects and 2.90 (SD ± 1.56) and 4.14 (SD ± 2.97) for subjects with caries experience. Dental caries was more prevalent amongst girls (P = 0.002). There was a statistically significantly negative association between dental caries and the level of father’s education (P = 0.015). Conclusions: While dental caries prevalence in 12 year‐old Libyan children was high, the mean DMFT was low compared with other developing countries, but higher than the WHO goal for year 2020. The high level of untreated caries is a cause for concern, representing a high unmet treatment need.     

Dental health behaviour in relation to caries status among medical and dental undergraduate students of Udaipur district,India

To cite this article:
Int J Dent Hygiene
DOI: 10.1111/j.1601‐5037.2008.00346.x
Kumar S, Motwani K, Dak N, Balasubramanyam G, Duraiswamy P, Kulkarni S. Dental health behaviour in relation to caries status among medical and dental undergraduate students of Udaipur district, India. Abstract: Objective: To compare the caries status and oral hygiene behaviour of dental and medical students and to assess the influence of oral hygiene behaviour on the caries status. Methods: A questionnaire survey was conducted to assess the knowledge, attitudes and behaviour along with clinical examination to asses the caries status. A total of 403 dental and medical students enrolled with Rajasthan University of Health Sciences of Udaipur district, India were recruited in the study. Results: 56.4% of dental students brushed their teeth twice daily compared to 38.5% of medical students. There was no significant difference between the mean decayed components of males and females of dental stream, whereas among medical subjects, males had a higher decayed score than females (P = 0.012). The mean behaviour score obtained by dental students (19.38) was greater than that of medical students (18.34). Moreover, medical students presented a higher decayed, missing and filled teeth (DMFT) score (1.96) than dental students (1.16). Subjects who had a habit of brushing after every meal showed lower DMFT score (1.4) than those who brushed only once a day (1.64). Step‐wise linear regression analysis revealed that course of education and final behaviour score were the best predictors for the DMFT status. Conclusion: This study revealed significant differences between the oral hygiene behaviour and caries status of dental and medical students; furthermore, caries status was significantly influenced by the oral hygiene behaviour.     

Association between obesity and dental caries in a group of preschool children in Mexico

Objective: The aim of this study was to determine the association between obesity and caries by utilizing the data of a cohort of preschool children aged 4‐5 years. Methods: Data were obtained from a cohort of 1,160 children. Dental caries detection was performed according to the World Health Organization criteria. The caries index was measured as the number of decayed (d), extracted (e), and filled (f) teeth (t) (deft), or surfaces (defs). The body mass index (BMI) in units of kg/m² was determined, and children were categorized according to age‐ and gender‐specific criteria as normal weight (5th‐85th percentile), at‐risk overweight (≥85th‐<95th percentile), and overweight (≥95th percentile). Odds ratios were determined for at‐risk overweight and overweight children using logistic regression. Results: The prevalence of dental caries was 17.9 percent. A slightly higher percentage of dental caries was found in boys (19.6 percent) than in girls (16.4 percent). From the total sample, the mean BMI was 17.10 ± 3.83. Approximately 53.7 percent of children were classified as normal weight, 14.2 percent as at‐risk overweight, and 32.1 percent as overweight. At‐risk overweight children were higher among girls (17.1 percent) than among boys (11.3 percent). When adjusted for covariates, the logistic regression model showed that there was a significant association between at‐risk overweight children (P < 0.001), overweight children (P < 0.001), and caries in the primary dentition. Mean (SD) deft value of the sample was 1.08 (2.34), while the corresponding defs value was 1.43 (3.29). Conclusion: Obesity appears to be associated with dental caries in the primary dentition of preschool Mexican children.     

Oral health survey of 5-12-year-old children of National Guard employees in Riyadh, Saudi Arabia

Objectives. To assess the oral health status, preventive practices and mutans streptococci (MS) levels among the children of National Guard personnel living in Riyadh, Saudi Arabia. Design. Cross‐sectional study of schoolchildren. Setting. Dental Clinic of the National Guard Hospital in Riyadh, Saudi Arabia. Sample and methods. A sample of 272 5–12‐year‐old children, 154 males and 118 females (95% Bedouin), were selected from approximately 35 National Guard schools in the Riyadh area. An examination was performed in the dental clinic in the National Guard hospital. Oral hygiene was assessed using the Simplified Debris Index (DI‐S); Gingival Index (GI) was used to measure gingival health; dental fluorosis was recorded according to the criteria of Dean. Dental caries (dmft, dmfs, DMFT and DMFS) was recorded according to the recommendations of Haugejorden. Concentration of MS in saline rinse samples was assessed by routine laboratory methods and expressed as colony forming units (CFU) per ml (log₁₀). Results. There was a high level of dental caries (mean dmft = 3·8 ± 3·2; mean dmfs = 21·5 ± 15·7; mean DMFT = 2·0 ± 1·9; mean DMFS = 3·1 ± 3·7). Only 0·7% of the children had no caries experience (dmft + DMFT). MS levels ranged from 0 to 7·5×10⁵ CFU per ml (mean MS = 4·10 ± 0·90 log₁₀ CFU per ml). A significant relationship between MS and caries experience was observed (P = 0·003). Mild fluorosis was observed in 14% of the children. Oral hygiene scores indicated that most of the examined tooth surfaces had detectable plaque (mean DI‐S = 1·78). Gingivitis was present in 100% of the children and was considered moderate to severe in 14% (mean GI = 1·18). Conclusions. The study revealed a high level of oral diseases and poor oral hygiene in the study population and a need for therapeutic and preventive measures.     

Assessment of salivary total antioxidant levels and oral health status in children with Down syndrome

Down syndrome (DS) is an autosomal chromosomal disorder caused by trisomy of all or a critical part of chromosome 21. Individuals with DS have high levels of oxidative stress throughout their lifespan. It has been suggested that levels of antioxidants could be altered in response to an infection or disease. Aim: To assess the total antioxidant capacity (TAC), nitric oxide (NO), and sialic acid (SA) of saliva in children with DS and its relation to their oral health status. Materials and methods: Thirty‐four noninstitutionalized children in the age group of 7–12 years having DS formed the study group. The control group consisted of 34 normal, healthy children. The W.H.O. criteria were used for diagnosis and recording of dental caries. Oral hygiene status was assessed using the simplified oral hygiene index. Estimation of TAC, NO, and SA levels in saliva was done. Data obtained were subjected to statistical analysis. Results: In comparison to normal children, DS children showed significantly lower TAC of saliva and significantly higher salivary SA levels. In both groups of children, dental caries was higher in primary dentition when compared to their permanent dentition.     

Prospective study of 5-year caries increment among children receiving comprehensive dental care in the New England children's amalgam trial

Abstract – Objective: To measure the 5‐year caries increment among high‐risk children during their participation in the New England Children’s Amalgam Trial (NECAT), and to evaluate sociodemographic factors that may account for any observed disparities. Methods: NECAT recruited 534 children aged 6–10 with at least two decayed posterior occlusal surfaces from urban Boston and rural Maine. After restoration of baseline caries and application of sealants to sound surfaces, NECAT continued to provide free comprehensive semiannual dental care to participants. The net caries increment of children who completed the 5‐year follow‐up (n = 429) was calculated and predictors of caries increment were investigated using multivariate negative binomial models. Results: The majority of children (89%) experienced new caries by the end of the 5‐year follow‐up. Almost half (45%) had at least one newly decayed surface by the first annual visit. At year 5, the mean number of new decayed teeth was 4.5 ± 3.6 (range 0–25) and surfaces was 6.9 ± 6.5 (range 0–48). Time trends showed a noticeably higher increment rate among older children and young teenagers. Multivariate models showed that age (P < 0.001), number of baseline carious surfaces (P < 0.001), and toothbrushing frequency (<1/day versus ≥2/day, P = 0.04) were associated with caries increment. Only 48 children (11%) did not develop new caries. Conclusions: Despite the receipt of comprehensive semiannual dental care, the vast majority of these high‐risk children continued to develop new caries within 5 years. While disparities were observed by age, extent of prior decay, and toothbrushing frequency, no other sociodemographic factors were associated with caries increment, suggesting that the dental care provided during the trial reduced sociodemographic disparities in prior caries experience that were observed at baseline.     

Dental health and oral mutans streptococci in 2-4-year-old Estonian children

Objective. The aim of this study was to assess the dental health and presence of mutans streptococci (MS) in 2–4‐year‐old Estonian children. Methods. The dental health of 472 2–4‐year‐old children was examined using a mirror and a penlight in 14 daycare centres representing seven communities around Estonia. The mean (± SD) age of the children was 41.4 ± 4.1 months (n = 222). Plaque samples of 222 children were employed to determine the presence of MS using the Dentocult® SM Strip mutans test. Results. Caries was diagnosed in 42% of the children, and the average (± SD) dmft index was 1.6 ± 2.5, ranging from 1.1 ± 1.2 in Tartu to 2.4 ± 3.1 in Võru. The proportion of caries‐free children decreased from 82% in the younger to 63% in the older group (P = 0.001). Among the tested subjects, 58% were colonized with MS, and those with caries were colonized more often than children with no visible caries (80% and 51%, respectively; P = 0.001). Conclusions. The prevalence of dental caries in Estonian 2–4‐year‐olds is higher than in the Nordic countries, but similar to other Baltic nations. Colonization by MS was associated with dental caries.     

Association between occlusal anomalies and dental caries in 3‐ to 5 year‐old Brazilian children

Abstract

Objective: To investigate the association between certain occlusal anomalies and the occurrence and severity of dental caries in Brazilian preschool children.

Design: Cross‐sectional study.

Setting: Twenty‐eight public nursery schools in Canoas, southern Brazil.

Subjects and methods: The study population comprised 890 three‐ to five‐year‐old children. Five trained and calibrated observers examined children for determination of decayed, missing and filled tooth (dmft) index (World Health Organization criteria including white spots) and orthodontic variables.

Outcome measures: Caries severity (dmft) and caries occurrence (dmft?1).

Statistical analysis: Multivariable analysis was performed using Poisson regression with robust variance in order to determine the occlusal anomalies which represent risk factors for the occurrence of the binary outcome.

Results: Caries severity was significantly higher among children without spacing in the maxillary anterior teeth (P?=?0·001) and mandibular anterior teeth (P?=?0·003) and among children without accentuated overjet (P?=?0·023). The multivariable analysis demonstrated that children without spacing in maxillary anterior teeth had an increased risk of dental caries (prevalence ratio?=?1·43; 95% CI, 1·05–1·93). Open bite, accentuated overjet and posterior cross‐bite were not associated with this outcome in the final model.

Conclusions: Absence of spacing in the maxillary labial segment represents a risk factor for dental caries in preschool children.     

Prevalence of early childhood caries among First Nations children, District of Manitoulin, Ontario

Background. Epidemiological studies of Aboriginal communities in Canada and Native American populations in the United States have reported that early childhood caries (ECC) is highly prevalent. The purpose of this study was to determine the prevalence of ECC and dental caries in the First Nations population of 3‐ and 5‐year‐old children in the District of Manitoulin, Ontario to assist in developing effective dental health promotion strategies. Methods. All 3‐ and 5‐year‐old children in elementary schools and day‐care centres in seven First Nation communities were eligible for the survey examination. Three‐year‐old children at home and 5‐year‐old children attending school off‐reserve in six of the communities were also eligible for epidemiological survey examination of oral health status including caries, gingival and soft tissue conditions. Cases of ECC were defined as children with caries or restorations on two or more primary maxillary incisors or canines or those having a total decayed, missing, filled primary teeth (dmft) score of 4 or greater. Results. A total of 87 children (59% 5 years old, 54% females) were examined. Seventy‐four per cent of children had one or more carious lesions. Forty‐five cases of ECC were found, a prevalence of 52%. The mean dmft score for cases was 7·5 (95% CI 6·5–8·4) and 0·8 (95% CI 0·5–1·1) for non‐cases (P < 0·001). Boys in both age groups were more likely to be affected by ECC than girls. Conclusion. Our results indicate that dental caries and ECC are highly prevalent in this population, with ECC cases having 6.7 more dmft than non‐cases.     

Professional oral hygiene treatment and detailed oral hygiene instructions in patients affected by mucous membrane pemphigoid with specific gingival localization: a pilot study in 12 patients

To cite this article:
Int J Dent Hygiene 10 , 2012; 138–141
DOI: 10.1111/j.1601‐5037.2010.00527.x Arduino PG, Lopetuso E, Carcieri P, Giacometti S, Carbone M, Tanteri C, Broccoletti R. Professional oral hygiene treatment and detailed oral hygiene instructions in patients affected by mucous membrane pemphigoid with specific gingival localization: a pilot study in 12 patients. Abstract: Objectives: The aim of this prospective case series was to assess the clinical efficiency of an oral hygiene protocol in patients affected by mucous membrane pemphigoid (MMP) with specific gingival localization, before starting any medical treatment. Methods: Patients received oral hygiene instruction followed by non‐surgical periodontal therapy including oral hygiene instructions in a 3‐week cohort study. Clinical outcome variables were recorded at baseline and 5 weeks after intervention and included, as periodontal parameters, full mouth plaque (FMPS) and bleeding (FMBS) scores and patient‐related outcomes (visual analogue score of pain). Results: A total of 12 patients were recruited. The mean age at presentation was 59.5 ± 14.52 years. Five weeks after finishing the oral hygiene and periodontal therapy protocol, a statistical significant reduction was observed for FMPS (P = 0.001), FMBS (P = 0.022) and reported pain (P = 0.0028). Conclusions: Professional oral hygiene procedures and non‐surgical periodontal therapy are connected with improvement of gingival status and decrease in gingival‐related pain, in female patients affected by MMP with specific gingival localization.     

Comparative study of the osseointegration of dental implants after different bone augmentation techniques: vascularized femur flap, non-vascularized femur graft and mandibular bone graft

Objectives: The purpose of this study was to evaluate the osseointegration of the dental implants placed into the mandible augmented with different techniques in pigs. Material and methods: Four adult domestic pigs were used. Horizontal augmentation of the mandible was performed in animals by using vascularized femur flap (VFF), non‐vascularized femur graft (NVFG) and monocortical mandibular block graft (MG). After 5 months of healing 10 dental implants were placed into each augmented site. The pigs were sacrificed after 3 months of healing. Undecalcified sections were prepared for histomorphometric analysis. Results: Mean bone–implant contact (BIC) values for implants placed into MG, NVFG and VFF were 57.38 ± 11.97%, 76.5 ± 7.88%, 76.53 ± 8.15%, respectively. The BIC values of NVFG and VFF group were significantly greater than MG group (P<0.001). On the other hand, there was not statistically significant difference between NVFG group and VFF group (P=0.999). Conclusion: NVFG as well as VFF can be considered as a promising method for augmentation of alveolar defects and the placement of the implants. The selection of non‐vascularized graft or vascularized flap depends on the condition of the recipient site. To cite this article:
Benlidayi ME, Gaggl A, Bürger H, Brandner C, Kurkcu M, Ünlügenç H. Comparative study of the osseointegration of dental implants after different bone augmentation techniques: vascularized femur flap, non‐vascularized femur graft and mandibular bone graft.
Clin. Oral Impl. Res. 22 , 2011; 594–599
doi: 10.1111/j.1600‐0501.2010.02013.x     

Caries prediction model in pre-school children in Riyadh, Saudi Arabia

Objectives. To evaluate the significance of variables such as oral hygiene, dietary habits, socio-economic status and medical history of a child in assessing the level of caries risk and to generate a caries prediction model for pre-school Saudi children. Design. Cross-sectional study of pre-school children. Setting. Clinics and schools in Riyadh, Saudi Arabia. Sample and methods. A sample of 446 Saudi pre-school children, 199 males and 247 females, with a mean age of 4·13 years, were selected at random from clinics and schools. Selection was limited to subjects who either had no caries (dmft= 0) or who had high caries experience (dmft > 8). Each child was examined for caries experience and oral hygiene status. Their mothers were interviewed through a standardized questionnaire for information about oral hygiene habits of the children, diet history, childhood illness and socio-economic status. Results. There was a highly significant difference between the two groups in: debris index (P<0.0001), age child started tooth brushing, (P<0·0001), age breastfeeding was stopped (P<0·005), nocturnal bottle feeding with milk formula (P<0·0001), use of sweetened milk (P<0·0001), frequency of use of soft drinks (P<0·0005), frequency of consumption of sweets (P<0·0001), and age at first dental visit (P<0·0001). A caries prediction model developed through stepwise multivariate Logistic Regression (LR) analyses showed debris index, use of sweetened milk in bottle, frequency of consumption of soft drinks, frequency of intake of sweets and child’s age at the first dental visit to be significant. Predictive probability of the model was 86·31% with a sensitivity of 90·1% and a specificity of 80·6%. Conclusions. Risk factors for dental caries have been identified and a caries prediction model has been developed for Saudi pre–school children. The prediction model, if verified, may provide dentists with guidance in identifying high caries risk Saudi pre-school children as targets for preventive programmes     

Prevalence of periimplant disease in partially edentulous patients: a practice-based cross-sectional study

Objectives: Evaluation of the prevalence rates of periimplant mucositis and periimplantitis in partially edentulous patients in a private dental practice. Material and methods: The data of 89 patients were collected (52 female, 37 male, age at time of implant placement: 51.8±10.3 years). All patients had been treated with dental implants of the same type and fixed superstructures between January 1999 and June 2006 (observational period: 68.2±24.8 months). Results: The patient‐related prevalence rate of periimplant mucositis (probing depth ≥4 mm and bleeding on probing [BOP]) was over all 44.9%. The respective rates in non‐smokers without periodontal history were 30.4% and in smokers with periodontal history 80%. The multiple logistic regression analysis identified a significant association of mucositis with the independent variable “smoker” (odds ratio [OR] 3.77; P=0.023). The patient‐related prevalence rate of periimplantitis (probing depth ≥5 mm, BOP/pus, radiographic bone loss) was 11.2% (smokers with periodontal history: 53.3%, non‐smokers: 2.8%). No periimplant disease was diagnosed in non‐smoking patients without periodontal history and with a good compliance after treatment. Statistical analysis identified a significant association of periimplantitis with “smoker” (OR: 31.58; P<0.001) and “compliance” (OR: 0.09; P=0.011). Periodontal history in general showed no significant association with periimplantitis. Conclusions: Smoking and compliance are important risk factors for periimplant inflammations in partially edentulous patients. To cite this article:
Rinke S, Ohl S, Ziebolz D, Lange K, Eickholz P. Prevalence of periimplant disease in partially edentulous patients: a practice‐based cross‐sectional study.
Clin. Oral Impl. Res. 22 , 2011; 826–833
doi: 10.1111/j.1600‐0501.2010.02061.x