Traumatic dental injuries in children from private and public schools

The purpose of this retrospective study was to analyze, by age and sex, the prevalence of traumatic injuries to permanent incisors and canines, and their distribution according to type in children from private and public schools. The samples consisted of 1,200 children aged 7-16 yr old enrolled in 12 private and public schools from the city of Santo Domingo, Dominican Republic. Garcia-Godoy's classification for traumatic injuries was used. The prevalence of injuries in private schools was 21.3% and in public schools 16.3% (P less than 0.05). The higher prevalence in private schools is mainly due to the enamel fractures. All together, more boys injured their teeth than girls. The most common type of injury in both sexes in private and public schools was the enamel fracture followed by the enamel-dentin fracture without pulp exposure.     

Traumatic dental injuries in schollchildren from Santo Domingo

The purpose of this retrospective study was to analyze, by age and sex, 1) the prevalence of traumatic injuries to permanent incisors and canines, and 2) their distribution according to type in schoolchildren from the city of Santo Domingo, in the Southern part of the Dominican Republic, which is located in the Caribbean Archipelago. The sample consisted of 1200 children aged 6-17 yr enrolled in eight public and private schools. Garcia-Godoy's classification for traumatic injuries was used. The prevalence of injuries was 12.2% (13.1% in boys and 11.2% in girls). The largest number of injuries was presented by the 14-yr-old children (17.4%) followed by the 13- and 12-yr-olds (15.7% and 11.7%, respectively). More boys injured their teeth than girls (not significantly) with a boy-to-girl ratio of 1.1:1. The most common type of injury in both sexes was enamel-dentin fracture, followed by enamel fracture.     

Traumatic dental injuries in preschoolchildren from Santo Domingo

The purpose of this retrospective study was to analyze, by age and sex, 1) the prevalence of traumatic injuries to primary incisors and canines, and 2) their distribution according to type in preschoolchildren from the city of Santo Domingo, in the Southern part of the Dominican Republic, which is located in the Caribbean Archipelago. The sample consisted of 800 children aged 3-5 years enrolled in 24 public and private preschools. The prevalence of injuries was 35% (32.8 in boys and 37.2 in girls). The largest number of injuries was presented by the 5-year-old children. More girls suffered traumatic injuries than boys (not significantly) with a boy-to-girl ratio of 0.9:1. Combining both sexes, the most common type of injury was the enamel-dentin fracture (32.6%), followed by enamel fracture (31.2%) and concussion (23.5%).     

Traumatic dental injuries in a sample of Dominican schoolchildren

Abstract The purpose of this retrospective study was to analyze 1) the prevalence of traumatic injuries to permanent incisors and canines, 2) their distribution according to type, 3) etiology, 4) place of occurrence, and 5) location of trauma, in a population sample of schoolchildren from the Dominican Republic, located in the Caribbean Archipelago. The sample consisted of 596 children aged 7–14 years enrolled in 21 public and private schools from the city of San Pedro de Macoris, in the southeastern part of the country. This sample represents 10.8% of the schoolchildren of the city. The prevalence of injuries was 18.1 % (17.4% in boys and 18.8% in girls). The largest number of injuries was found in the 14-year-old children followed by the 12-year-olds. Significantly, girls had a larger number of actual teeth injured than boys (P < 0.05). The most common type of injury in both sexes was the enamel fracture (51.1%) followed by concussions (25.6%). Significantly, more girls suffered concussions than boys (P < 0.05). The most common cause of injury in both sexes was falling against an object (60.0% in boys and 42.6% in girls). The most frequent place of occurrence of trauma, in both sexes, was at home (34.1 %), followed by outside of home (19.3%) and at school (12.5%). The teeth most commonly injured were the maxillary central incisors (63.9%). Girls presented significantly more mandibular lateral incisors injured than boys (P < 0.02).     

Fractured and avulsed permanent incisors in Finnish children. A retrospective study.

The frequency of traumatic injuries to permanent incisors was studied in a sample of 1614 children from the city of Lahti in Southern Finland. The children, 801 girls and 813 boys, ranged in age from 6 to 16 years. Injuries to hard dental tissues and exarticulations of teeth were recorded. The prevalence of injuries was 19.8%--14.6% in girls and 25.0% in boys. A rapid growth in the prevalence rates was found at the ages of 9--11 years, at which the estimated mean annual incidence was about 5% in girls and 7% in boys. In 78.4% of the children with injured incisors, one tooth only was injured. The teeth most commonly injured were the upper central incisors, 81.7%; and the most frequent type of injury was an uncomplicated crown fracture, 90.5%.     

Prevalence of traumatized permanent incisors in Jordanian children, according to age, sex and socio-economic class.

The purpose of this retrospective study was to analyse firstly the prevalence of firsty fractured permanent incisors, secondly their distribution according to age, sex and socio-economic class and thirdly the location of the trauma, in a population sample of schoolchildren from Jordan. The sample consisted of 3041 children aged 7-12 years enrolled in 6 public and private schools from the city of Amman and its outskirts. The prevalence of fractured permanent incisors was 10.5% (12.1% in boys and 8.8% in girls). The largest number of injuries was observed in the 11-12 years group (15.0%) and there was an increase of the prevalence of trauma associated with the increase of age. Significantly more boys suffered injuries than girls (P less than 0.01). The teeth most commonly injured were the maxillary central incisors (79.1%) and 85.2% of children sustained one fractured tooth only. The numbers of traumatized children in each of the low and middle socio-economic classes were significantly higher than those in the high socio-economic class.     

Traumatic dental injuries in nursery schoolchildren from Baghdad, Iraq

The purpose of this study was to determine, by age and sex, 1) the prevalence of traumatic injuries to primary incisors and canines, and 2) their distribution according to type in nursery schoolchildren from the city of Baghdad. The sample consisted of 2389 children aged 1-4 yr enrolled in 39 nursery schools. The prevalence of injuries was 24.4% (24.5% in boys and 24.3% in girls). The largest percentage of injuries was demonstrated by the 4-yr-old children. There were no differences between boys and girls in their susceptibility to traumatic dental injuries. Combining both sexes, the most common type of injury was the enamel fracture (83.8%), followed by concussion (7.4%) and enamel-dentin fracture (6.2%).     

Prevalence and causes of fractured permanent incisors in 12-year-old suburban Nigerian schoolchildren

Abstract –  The aim of the study was to assess the prevalence and causes of traumatic dental injuries to the permanent dentition of 12-year-old school children in lle-Ife, a suburban population in the south west of Nigeria. A dental trauma cross-sectional survey was carried out through clinical examination of upper and lower permanent incisors and interviews with 415 (212 boys, 203 girls) 12-year-old children attending private and public secondary schools in lle-Ife, in 2004/2005 by one calibrated examiner. Garcia-Godoy's classification was used. The prevalence of traumatic dental injuries was 12.8%. There was no statistical difference in the prevalence between boys and girls P  > 0.05. The most common cause of injuries was falls (49.1%), followed by traffic accidents (13.2%), collision against objects or people (11.3%) and misuse of teeth 9.4%. The commonest type of injury was enamel fracture alone (9.9%), followed by enamel-dentine fracture (4.8%). Majority of the accidents occurred at home (60.4%), followed by school (26.4%). The prevalence of traumatic dental injuries was on the increase among suburban Nigerian children in Ile-Ife and it has a potential to be considered an emerging public health problem.     

Epidemiology of traumatic injuries to the permanent incisors of 9-12-year-old schoolchildren in Damascus, Syria.

This cross-sectional survey was carried out to assess epidemiological data concerning dental injuries to the permanent incisors of Syrian children. It included 1087 children aged 9 to 12 years, of both sexes, randomly selected from public and private primary schools in Damascus. The response rate was 100%. The prevalence of traumatic injuries to the permanent incisors rose from 5.2% at the age of 9 years to 11.7% at the age of 12 years (P = 0.007). The difference in prevalence between boys and girls was not statistically significant (P > 0.05). The majority (59.8%) of children who had experienced injuries to the permanent incisors reported that they were not taken to the dentist for evaluation or treatment of the damage. Among those children who had experienced traumatic injuries to the teeth 93.1% presented with untreated damage. Because some injuries were minor, such as small enamel fractures, the proportion of children who needed treatment was 63.2%. There was a tendency for children with an incisal overjet greater than 5 mm to have experienced dental injuries (P = 0.06). Children with inadequate lip coverage were more likely to have experienced dental injuries than those with adequate lip coverage (P = 0.000). The most common reported cause of injuries to the permanent incisors was violence (42.5%), followed by traffic accidents (24.1%), collisions with people or inanimate objects (16.0%) and falls (9.1%). In conclusion, traumatic dental injury may pose a serious dental public health problem.     

Epidemiology of traumatic injuries to the permanent incisors of 9–12-year-old school children in Damascus, Syria

Abstract— This cross-sectional survey was carried out to assess epi-demiological data concerning dental injuries to the permanent incisors of Syrian children. It included 1087 children aged 9 to 12 years, of both sexes, randomly selected from public and private primary schools in Damascus. The response rate was 100%. The prevalence of traumatic injuries to the permanent incisors rose from 5.2% at the age of 9 years to 11.7% at the age of 12 years ( P= 0.007). The difference in prevalence between boys and girls was not statistically significant ( P>0.05 ). The majority (59.8%) of children who had experienced injuries to the permanent incisors reported that they were not taken to the dentist for evaluation or treatment of the damage. Among those children who had experienced traumatic injuries to the teeth 93.1% presented with untreated damage. Because some injuries were minor, such as small enamel fractures, the proportion of children who needed treatment was 63.2%. There was a tendency for children with an incisal overjet greater than 5 mm to have experienced dental injuries ( P=0.06 ). Children with inadequate lip coverage were more likely to have experienced dental injuries than those with adequate lip coverage (P=0.000). The most common reported cause of injuries to the permanent incisors was violence (42.5%), followed by traffic accidents (24.1%), collisions with people or inanimate objects (16.0%) and falls (9.1%). In conclusion, traumatic dental injury may pose a serious dental public health problem.     

Causes and prevalence of traumatic injuries to the permanent incisors of school children aged 10-14 years in Maseru, Lesotho

Traumatic dental injuries are widespread in the population and the prevalence of traumatic dental injuries among school children in different parts of the world varies from about 3% to 45%. Most injuries involve the anterior teeth, which may lead to eating restrictions, changes in physical appearance, speech defects and psychological impacts that affect the child's quality of life. A cross-sectional survey was carried out to investigate the prevalence, aetiology and types of injuries to permanent incisors among schoolchildren aged 10-14 years from Maseru, Lesotho. Upper and lower permanent incisors were examined for dental injuries. The prevalence of traumatic injuries to the permanent incisor teeth was 9.3% (13.3% boys and 6.3% girls). Significantly more boys than girls suffered injury. The most common type of injury was enamel fractures and most common cause was falls. Health promotion policies should aim to create an appropriate and safe environment for children. Soft playground surfaces, school-crossing patrols, marked zebra crossings and bicycle lanes would help create a safe environment. Speed limits for cars and the use of seat belts, air bags, special car seats for children and bicycle helmets should be enforced. Mouth guards should be used when playing sport, in particular contact sports. Education regarding the epidemiology of dental injuries and their prevention through health promotion may play a major role in reducing the prevalence of dental injury and avoiding the financial costs of treatment, especially in developing countries.     

Primary teeth traumatic injuries at a private pediatric dental center

Abstract The purpose of this study was to analyze primary teeth traumatic injuries at a private pediatric dental center. A total of 114 children with 196 traumatized teeth participated in this study from 1980–1984. The most common injury was concussion. The 1–2 year olds presented the highest number of injuries (p<0.01). Falling against an object was the most common cause of injury in both sexes. Most of the injuries occurred inside the home. July and August were the months that showed the highest number of children with injured teeth; 38.7% of the children visited the dental office the same day of the injury, while 37.8% did so 1–7 days later.     

Prevalence pattern of dental caries in the primary dentition among school children.

The purpose of the study was to assess the pattern of prevalence of dental caries in the primary dentition among 5 year old children. The area of study was urban Pondicherry and the study population consisted of 1009 school children of both sexes (527 boys and 482 girls). A simple random sampling method was used to select the schools. Dental caries was assessed by the Dentition status and Treatment Need (WHO 1997). Statistical analysis was done using the Proportion test. The prevalence of caries was 44.4% among the study population, being higher in the boys (P < 0.05); In Mandibular arch in both the sexes (boys P < 0.05, girls P < 0.01); in posterior teeth (both sex wise & arch wise). Comparison of caries among anterior teeth (Boys vs Girls) [corrected] and posterior teeth (upper vs. lower) revealed higher caries prevalence in Maxillary anterior teeth (P < 0.001) and Mandibular posterior teeth (P < 0.001). In both the sexes and arches, primary second molars showed higher caries prevalence.     

Dental trauma in children and young adults visiting a University Dental Clinic

Abstract –  The aim of the study was to present the distribution of traumatic dental injuries in the permanent anterior teeth in 447 consecutively selected patients in the age interval of 6 to 25 years treated at the Department of Paediatric Dentistry at the University Dental Clinic in Rijeka, Croatia, in the period from 2001 to 2006. Data on age, gender, number of injured teeth and type of injury were taken from the dental records. Of all 447 consecutively selected patients with traumatic dental injury 56.2% were boys and 43.8% were girls with a male/female ratio 1.28:1 ( P  < 0.01). The highest frequency of tooth injuries occurred among 10- to 13-years-old children. Among 30.6% of the cases, two or more teeth were injured (38.6% in boys and 21.4% in girls). Traumatic injuries affecting teeth in the upper jaw were more frequent ( P  < 0.001). The most commonly affected teeth were the maxillary central incisors (42.4% of right central incisors and 38% of left central incisors). The most frequent injury was enamel and dentin fracture without pulpal involvement (38.7%). In conclusion, more attention should be paid to preventive measures.     

Traumatic dental injuries in Brazilian preschool children

Abstract  – The purpose of this study was to determine the prevalence and distribution of traumatic injuries to primary anterior teeth in children from zero to 6 years old, all attendees in 28 public nursery schools in Canoas (Brazil). A total of 1545 boys and girls participated in the study. The children were clinically examined for signs of trauma according to Andreasen's classification. Traumatic injuries were identified in 35.5% of children. The largest percentage of injuries was demonstrated by 3–4-year-old child, with no significant difference between boys and girls. The maxillary central incisor was the most vulnerable to injury, without differences between the right and the left side. Single tooth injury was predominant in all age groups. Crown fractures represented 83% of all traumatic injuries. Our findings emphasize the importance of encouraging parents to visit the dentist with their child at an early stage. Furthermore, parents and educators should be advised about prevention of traumatic injuries and actions to be taken in case of an accident.     

The prevalence of traumatic dental injuries: a 24-month survey

The aim of the present investigation was to assess the prevalence of dental traumatic injuries in children referred to Queen Fabiola Children's Hospital, Free University of Brussels, Belgium. This study was based on the clinical data of 457 traumatized teeth in 214 children. Most injuries involved 2 teeth (51%). Of these, maxillary central incisors were the most affected teeth (89%). The highest frequency of trauma occurred between 2 and 4 years of age. Falls were the most common cause of injury in both girls and boys. The most common type of injury in the primary and permanent teeth was subluxation. Gingival and mucosal laceration was the most common type of soft tissue lesion (61%). Only 42% of children came for dental treatment on the same day that they were injured.     

乳牙外伤的临床分析

目的：分析乳牙外伤患儿的年龄、性别、牙位分布、外伤类型、受伤地点、受伤原因，外伤后就诊时间和治疗方法的选择。方法：对1989－1999年在我科就诊的130例（226颗外伤牙）乳牙外伤患儿进行了临床回顾性分析。结果与结论：男孩在3－4岁，女孩在2－3岁时发生乳牙外伤的人数最多。男女比例为1．7：1。上颌乳中切牙最易受伤，占76．55％，牙齿移位是最常见的外伤类型。发生牙外伤的地点多是在家庭，其次是在道路。主要外伤方式是跌例。27％的患儿在外伤后2小时以内就诊，40％的患儿在外伤后2－24小时就诊。     

Traumatic injuries to the anterior teeth among South Kanara school children--a prevalence study

The present study was carried out to assess the prevalence and distribution of the traumatic injuries to anterior teeth among 4500 school children in the age group of 3 to 16 years from South Kanara District of Karnataka. Information concerning sex, age, cause of trauma, number of injured teeth, type of the teeth, lip competence, terminal plane relationship and the molar relationship were recorded. A total of 238 cases (5.29%) had incisor and canine fractures, which was more prevalent among the boys (72.27%) than the girls (27.73%). The leading cause of injury was undefined falls and the maxillary central incisors were commonly affected in both the primary and the permanent dentition. Enamel fracture was the most common form of injury noted. Class 1 Type 2 and Class 2 division 1 molar relationship cases exhibited significantly very high number of fractured teeth. Only 1.68% of the cases with traumatized teeth had undergone treatment.     

A survey of hypodontia in Japanese orthodontic patients.

INTRODUCTION: The purpose of this retrospective study was to assess the prevalence and distribution of hypodontia in the permanent dentition, excluding the third molars, in a sample of Japanese orthodontic patients. METHODS: Orthopantomograms of 3358 Japanese orthodontic patients (1453 boys and 1905 girls) between the ages of 5 and 15 years were examined for evidence of hypodontia. RESULTS: The prevalence of hypodontia was 8.5% (7.5% for boys, 9.3% for girls) with no statistically significant difference between the sexes. The average number of missing teeth per child was 2.4 (2.5 for boys, 2.4 for girls). Most (76.3%) children with hypodontia were missing either 1 or 2 teeth (77.1% for boys, 75.7% for girls). The prevalence of advanced hypodontia was 10.1% (11.0% for boys, 9.7% for girls). The most commonly missing teeth were the mandibular second premolars, followed by the mandibular and maxillary lateral incisors, and the maxillary second premolars; minor differences in the order of prevalence existed among groups of children classified by the number of missing teeth. Symmetrical hypodontia was predominant, and the most commonly symmetrical hypodontia was mandibular second premolar agenesis. No consistent finding was obtained as to which jaw had more missing teeth. The distribution of missing teeth was similar between the right and left sides of the dental arches in each group of children. Anterior tooth agenesis was predominant in children with minor hypodontia, and posterior tooth agenesis increased with hypodontia severity. CONCLUSIONS: The distinct characteristic of hypodontia in the Japanese population compared with other populations was a higher prevalence of both advanced hypodontia and mandibular lateral incisor agenesis in children with minor hypodontia.     

Periodontal treatment needs in 12–16-yr-old children from Santo Domingo

The purpose of this study was to determine the periodontal treatment needs, using the CPITN, in 12-16 yr-old children from private and public schools from Santo Domingo, Dominican Republic. A total of 1080 children was studied (540 in private schools and 540 in public schools). More children from private schools were seen without signs of periodontal disease than in public schools. More children from private schools showed no need for treatment. There was no statistical difference between children from private and public schools regarding the treatment need categories I and III. However, for the treatment need II category (oral hygiene-scaling), the children from public schools showed a slight increase in need over the private schoolchildren. Combining private and public schools, 12.9% of the 1080 children examined needed no treatment, 5.9% needed treatment I, 80.8% needed treatment II, and 0.4% needed treatment III.