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1.
Gonzalo Gomez Fernando Jara Baltasar Sánchez Miguel Roig Fernando Duran-Sindreu 《Journal of endodontics》2013
Introduction
The use of piezoelectric units on patients with pacemakers is generally discouraged, although there is no empirical evidence of the effects of current piezoelectric units on pacemaker activity in vitro.Methods
Four piezoelectric units (Piezosurgery3, Piezotome, Piezotome2, and Variosurg) and 2 magnetostriction units (Piezotome and Piezotome2) were tested for electromagnetic interference (EMI) with the SENSIA SESR01 pacemaker from Medtronic. The pacemaker, with a single electrode, was immersed in a saline-solution bath and adjusted between 400 and 800 ohms to simulate the electrical resistance of the human body and to register and to produce electrographic recordings. The pacemaker was tested with each ultrasonic device to analyze the presence of EMI at different distances, with the ultrasound switched on, switched off, and during operation. If any of the devices produced interference, the characteristics of the interference were categorized.Results
In the positive control (direct contact between either the electrode or the generator and the ultrasound device when this was switched on), the pacemaker detected electrical activity as false heart activity. When all the scenarios and distances had been covered, no EMI was produced by the ultrasound units.Conclusions
No EMI was detected during the testing of the piezoelectric or magnetostriction units in this in vitro model of pacemaker use. 相似文献2.
A Villa S Abati P Pileri S Calabrese G Capobianco L Strohmenger L Ottolenghi I Cetin GG Campus 《Australian dental journal》2013,58(2):224-229
Background
The aim of this study was to explore the oral hygiene practices and oral health status of Italian postpartum women.Methods
A self‐administered questionnaire assessed socio‐demographic information, oral hygiene habits and frequency of dental visits. All women received a thorough oral examination within five days after delivery. Logistic regression models were used to estimate odds ratios and 95% confidence intervals for exposures of interest and the presence of ‘severe’ periodontitis.Results
Seven hundred and fifty women participated in the study; 99.1% brushed their teeth everyday and 59.9% visited the dentist annually. The mean frequency of sites with bleeding on probing was 16.1% and the median clinical attachment level was 2.1 mm. The mean caries experience score (DMFT) was 8. Severe periodontal disease was present in 21.9% of individuals. Patients who reported visiting a dentist only when in pain and women with three dental caries or more were significantly more likely to have periodontitis (OR: 1.6; 95% CI: 1.1–2.2; p < 0.05 and OR: 2.3; 95% CI: 1.5–3.5; p < 0.01, respectively).Conclusions
Given the possible association between maternal and infant oral health, and between periodontal infection and general health, antenatal care providers should collaborate with dentists to encourage all pregnant women to comply with the oral health professionals' recommendations regarding appropriate dental brushing techniques and the importance of dental visits. 相似文献3.
4.
Carlo Bosoni Michele Nieri Debora Franceschi Bernardo Quiroga Souki Lorenzo Franchi Veronica Giuntini 《Orthodontics & craniofacial research》2023,26(4):585-590
Objective
To compare the conventional alginate impression and the digital impression taken with an intraoral scanner of both dental arches in children, using a randomized crossover design.Trial Design
This is a monocentric, controlled, superiority, randomized, crossover, open study.Methods
Twenty-four orthodontic patients between 6 and 11 years of age underwent intraoral scanning (TRIOS 3; 3Shape) and alginate impression of both dental arches with an interval of 1 week between the two procedures. Participants were recruited from September 2021 to March 2022 and the study was completed in April 2022. Impression time for the two procedures was compared. Patients were asked which one of the two impression procedures they preferred. A questionnaire including Visual Analogue Scale (VAS) for comfort, pain, gag reflex and difficulty in breathing, was administered to the patients.Results
Eighteen out of 24 patients preferred digital impression (75%, 95% confidence interval [CI]: 55% to 88%; P = .014). Scanning time was significantly shorter than alginate impression time (difference −118 seconds; 95% CI: −138 to −99; P < .001). Comfort was significantly higher for digital impression (difference 1.7; 95% CI: 0.5 to 2.8; P = .007). There was no difference in pain (difference −0.2; 95% CI: −1.5 to 1.0; P = .686) while gag reflex and breathing difficulties were smaller for digital impression (gag reflex difference −2.5; 95% CI: −4.0 to −0.9; P = .004 and breathing difficulties difference −1.5; 95% CI: −2.5 to −0.5; P = −.004).Conclusions
Digital impression is preferred by children aged 6–11 years and it is significantly faster in acquisition time than conventional alginate impression.Registration
The study was registered on ClinicalTrials.gov with registration number NCT04220957 on January 7th, 2020 ( https://clinicaltrials.gov/ct2/show/NCT04220957 ). 相似文献5.
PURPOSE
The objective of this study was to compare the light transmittance of zirconia in different thicknesses using various light curing units.MATERIALS AND METHODS
A total of 21 disc-shaped zirconia specimens (5 mm in diameter) in different thicknesses (0.3, 0.5 and 0.8 mm) were prepared. The light transmittance of the specimens under three different light-curing units (quartz tungsten halogen, light-emitting diodes and plasma arc) was compared by using a hand-held radiometer. Statistical significance was determined using two-way ANOVA (α=.05).RESULTS
ANOVA revealed that thickness of zirconia and light curing unit had significant effects on light transmittance (P<.001).CONCLUSION
Greater thickness of zirconia results in lower light transmittance. Light-emitting diodes light-curing units might be considered as effective as Plasma arc light-curing units or more effective than Quartz-tungsten-halogen light-curing units for polymerization of the resin-based materials. 相似文献6.
Maria Grazia Piancino Alessandro Tortarolo Francesco Macdonald Umberto Garagiola Ludovica Nucci Marco Brayda-Bruno 《Orthodontics & craniofacial research》2023,26(2):178-184
Objective
To evaluate mastication in a group of patients with adolescent idiopathic scoliosis (AIS) with a control group, by means of the prevalence of reverse chewing cycles (RCCs).Material and Methods
This study included a group of patients (N = 32; F = 24; M = 8; mean age ± SD = 14 ± 3 years) with a confirmed diagnosis of AIS and a group of control subjects (N = 32; F = 24; M = 8; mean age ± SD = 13 ± 6 years) without spinal disorders. Mastication was recorded with both a hard and a soft bolus, following a standardized protocol, and the prevalence of RCCs was compared between the groups.Results
The prevalence of RCCs was significantly higher in the AIS group, with both a soft and a hard bolus, compared to the control group (P < .001).Conclusion
The results of this study indicate that the presence of AIS influences mastication, one of the main functions of the stomatognathic system. A multidisciplinary approach to these patients may be relevant in providing the best possible treatment outcomes. 相似文献7.
The impact of the affordable care act's Medicaid expansion on dental care use through 2016
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Objective
To examine the impact of the Affordable Care Act on dental care use among low‐income adults ages 21‐64.Methods
Our analysis uses national survey data from the 2010‐2016 Gallup Wellbeing‐Index. We use a differences‐in‐differences analysis to assess changes since the end of 2013 in dental care use among low‐income adults. We compare changes in states that expanded Medicaid and offer adult Medicaid dental benefits versus changes in other states.Results
Relative to the pre‐reform period and other states, in Medicaid expansion states with adult dental benefits, dental care use increased 3‐6 percentage points in 2016.Conclusions
In Medicaid expansion states with adult dental benefits, evidence suggests that low‐income adults have greater access to dental care. 相似文献8.
Investigation of factors that influence pain experienced and the use of pain medication following periodontal surgery
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Jennifer R. Beaudette Peter C. Fritz Philip J. Sullivan Assunta Piccini Wendy E. Ward 《Journal of clinical periodontology》2018,45(5):578-585
Aims
To determine the relationship between anticipated pain and actual pain experienced following soft tissue grafting or implant surgery; to identify the factors that predict actual pain experienced and the use of pain medication following soft tissue grafting or implant surgery.Materials and Methods
Prior to dental implant placement (n = 98) or soft tissue grafting (n = 115) and for seven days following the procedure, patients completed a visual analog scale indicating anticipated or experienced pain, respectively. The use of pain medication and alcohol, and smoking were measured.Results
Actual pain experienced on day 1 was lower (p < .01) than anticipated pain and continued to decrease (p ≤ .01) for each of the 7 consecutive days. Anticipated and actual pain were positively correlated. Increasing age (p < .05), having sedation during the surgery (p < .05), and lower use of pain pills (p < .01) predicted lower pain experienced. Actual pain experienced was a predictor of pain pill use (p < .01). Greater nervousness (p < .01) prior to surgery was a predictor of greater anticipated pain.Conclusions
Patients anticipated more pain than they actually experienced. Sedation, age and number of pain pills used predicted pain experienced. This trial was registered with clinicaltrials.gov as NCT03064178. 相似文献9.
EREA Brouns JA Baart KH Karagozoglu IHA Aartman E Bloemena I van der Waal 《Oral diseases》2014,20(3):e19-e24
Objectives
Oral leukoplakia is a potentially malignant disorder of the oral mucosa. The aim of this retrospective study was to identify the factors that possibly predict malignant transformation in a well‐defined cohort of patients with a long‐term follow‐up. All leukoplakias were staged according to a clinicopathological classification and staging system. Furthermore, a certainty factor has been used with which the diagnosis has been established.Material and methods
The group consisted of 144 patients. The size, presence and degree of epithelial dysplasia were incorporated into a clinicopathological classification and staging system. Initial management consisted of surgical excision, CO2 laser vaporisation or observation only. The mean follow‐up period was 51.2 months (s.d. = 39.33, range 12–179 months).Results
In 16 of 144 patients (11%), malignant transformation occurred between 20 and 94 months (mean 57.0 months) after the first visit, the annual malignant transformation rate being approximately 2.6%. A large size of the lesion (≥ 4 cm) showed to be the only statistically significant predictor of malignant transformation (P = 0.034).Conclusion
A size of ≥ 4 cm showed to be the only significant predicting factor of malignant transformation in oral leukoplakia. No other epidemiological, aetiological, clinical or histopathological parameters were of statistical significance. 相似文献10.
A clinical,randomized study on the influence of dental whitening on Streptococcus mutans population
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ALF Briso ÚAE Silva MBA Souza V Rahal EG Jardim Júnior LTA Cintra 《Australian dental journal》2018,63(1):94-98
Background
Dental whitening with peroxides has been popularized through the at‐home technique, which employs low concentrations of peroxide applied in individual trays. However, there are few clinical trials reporting the effects of its continuous use on oral microbiota. Thus, the purpose of the present clinical, randomized study was to evaluate the influence of at‐home whitening treatment on Streptococcus mutans in saliva, buccal mucosa, and subgingival and supragingival plaque.Methods
Thirty volunteers were randomly divided into two study groups (N = 15) according to the whitening therapy: G CP, whitening using 10% carbamide peroxide 4 h daily for 21 days; and G HP, whitening using 6% hydrogen peroxide 1.5 h daily for 21 days. Samples from the predetermined locations were collected at three evaluation periods: T1, before; T2, immediately after; and T3, 30 days after the beginning of the treatment. The microbiological evaluation was made using conventional and molecular methods.Results
Student's t‐test demonstrated a statistically significant decrease in S. mutans population in the subgingival and supragingival plaque for HP samples between T1 and T2 no difference was found between T1 and T3 regardless of the location and the whitening product used (α = 0.05).Conclusions
Although HP reduced S. mutans during treatment, the levels returned to baseline when assessed 30 days after the treatment. 相似文献11.
L Golpasand Hagh F Zakavi S Ansarifar O Ghasemzadeh G Solgi 《Australian dental journal》2013,58(2):219-223
Background
Salivary secretory IgA (sIgA) is said to play an important role in the immune response against dental caries. This study aimed to determine the salivary sIgA levels in healthy smokers and non‐smokers, and its correlation with dental caries.Methods
A total of 70 healthy subjects were selected and classified into four groups according to dental caries and tobacco smoking habits: smoking with caries (Group 1, n = 15); smoking without caries (Group 2, n = 15); non‐smoking with caries (Group 3, n = 15); and non‐smoking without caries (Group 4, n = 25). Salivary sIgA was measured using ELISA. The fissure and proximal caries were examined clinically and radiographically. Caries status was determined according to the decay surface index.Results
Smokers showed a higher number of caries and the lowest concentration of sIgA. The highest levels of sIgA were observed in non‐smoking and caries‐free subjects compared to caries‐active smokers (123.2 ± 19.9 vs. 13.3 ± 4.1 μg/ml respectively, p < 0.001). Also, the mean level of sIgA in Group 4 was significantly higher than Group 3 (p = 0.009). More importantly, higher and significant levels of sIgA were found in Group 3 versus Group 1 (p < 0.0001) and Group 2 (p = 0.0004).Conclusions
Our findings indicate that low concentrations of salivary sIgA are correlated with a higher prevalence of dental caries in smokers. 相似文献12.
Munish Kohli Asha Mathur Monica Kohli Saif Rauf Siddiqui 《Journal of maxillofacial and oral surgery》2009,8(4):329-333
Objective
To assess the most common micro-organisms causing odontogenic infections and their antimicrobial susceptibility. 相似文献13.
Background
This study was undertaken to quantify how the Great Recession impacted the demand for general oral health care and orthodontic care in the United States. The authors conducted an analysis to help dentists anticipate changes in demand for care during future economic downturns.Methods
The authors analyzed Medical Expenditure Panel Survey data for the period 2003 through 2015. Data plotting for the various factors considered showed patient demand before, during, and after the Great Recession, including an indication of postrecession recovery. Statistical significance across time was determined using a χ2 test. The point estimates and statistical inferences took into account the complex survey design of the Medical Expenditure Panel Survey.Results
General dentist visits declined slowly and steadily during the Great Recession, reaching a low of 38.4% in 2010, and have not shown significant signs of recovery. Orthodontic visits also declined to an all-time low of 2.5% in 2010, although they have somewhat recovered. Out-of-pocket expenditures were lower in 2015 than in 2003 for general dental and orthodontic care.Conclusion
The effects of the Great Recession resulted in a decrease in the demand for oral health care, differing for general oral health care and orthodontic care.Practical Implications
These findings, especially in combination with leading indicators for economic downturns, will allow dentists to better plan and use strategies for maintaining practice stability during periods of reduced demand for care. 相似文献14.
M. P. Cullinan P. S. Bird N. C. K. Heng M. J. West G. J. Seymour 《Journal of periodontal research》2014,49(2):220-225
Background and Objective
There is a paucity of data in relation to the possible emergence of triclosan (TCS)‐resistant bacteria following long‐term exposure to TCS toothpaste. Therefore, this study investigated whether long‐term continuous exposure to TCS in toothpaste selects for TCS‐resistant bacteria within the oral biofilm.Material and Methods
Dental plaque samples were collected from 40 individuals during year 5 of a randomised controlled trial. Participants had been randomly assigned to use TCS (3000 μg/mL TCS) (n = 18) or placebo toothpaste (n = 22). Diluted plaque samples were plated on to Wilkins–Chalgren agar plates containing 5% (v/v) laked sheep red blood cells and TCS (concentrations ranging from 25 to 150 μg/mL) and incubated at 37°C under microaerophilic and anaerobic conditions for 2–10 d. Selected bacterial isolates were identified by partial 16S rDNA sequencing and TCS minimum inhibitory concentration (MIC) determined for each isolate.Results
At 3000 μg/mL TCS no growth was observed under microaerophilic or anaerobic conditions in either group. The MICs of TCS for all isolates ranged from 125 to 1000 μg/mL in both groups. Species common to both groups had similar MICs. Veillonella parvula and Campylobacter gracilis were the most frequent isolates from both groups, with similar MICs in both groups.Conclusion
The use of TCS‐containing toothpaste did not appear to lead to an increase in MIC of TCS of oral bacterial isolates. 相似文献15.
Elisabeth R. Brouns Ilkay Evren Leon J. Wils Jos B. Poell Ruud H. Brakenhoff Elisabeth Bloemena Jan G. A. M. de Visscher 《Oral diseases》2023,29(7):2667-2676
Objectives
A classification and staging system for oral leukoplakia (OL) was introduced to promote uniform reporting. In this system, size and the histopathologic diagnosis are assessed and combined in a staging system. The various stages could be predictive for malignant transformation of OL. Differentiated dysplasia (DD) was recently recognized as an important architectural pattern of dysplasia and is highly associated with malignant transformation (MT) of OL. In the present study, DD was incorporated in the OL-system. The aim of the present study was to test the adapted system on a cohort of patients with OL.Patient and methods
The group consisted of 140 patients. The size, absence or presence and degree of classic dysplasia (CD) and DD were incorporated into the OL-system.Results
In 31/140 patients, MT occurred. Size was not statistically significant with MT (p = 0.422). The presence of dysplasia was predictive for MT (p = 0.003), whereby severe CD and DD were highly statistically significant for MT (p = 0.008). Stage IV was statistically significant for MT (p = 0.011).Conclusions
The present study emphasizes the value of the slightly modified OL-system with incorporation of DD in uniform reporting of OL and the value in predicting MT. 相似文献16.
Aim
To present a case of severe hemifacial microsomia with unusual muscle overgrowth at presentation. 相似文献17.
Duangjai Lexomboon Mina Tägt Inga-Lena Nilsson Kåre Buhlin Henrike Häbel Gunilla Sandborgh-Englund 《Oral diseases》2023,29(7):2954-2961
Objectives
To analyze the effects of primary hyperparathyroidism on oral health and to investigate if the effects are linked to severity of the disease.Subjects and Methods
This prospective cohort study involved 6151 primary hyperparathyroidism patients registered in the Scandinavian Quality Registry of Thyroid, Parathyroid, and Adrenal surgery and the National Cancer Register after parathyroidectomy (exposure) during 2011–2017 (patient cohort) and 60,654 individuals without primary hyperparathyroidism (reference cohort), matched by age, gender, and county of resident at the date of parathyroidectomy. The outcomes were tooth extractions and periodontal interventions. The risk for the outcomes was assessed by Poisson regression models.Results
After adjusting for covariates, the patient cohort had a higher incidence rate of tooth extraction during the two-year period after parathyroidectomy (IRR = 1.15; 95% CI = 1.01–1.31), but a lower incidence rate of periodontal interventions during the four- to six-year period after parathyroidectomy (IRR = 0.88; 95% CI = 0.79–0.99). Furthermore, patients with more severe primary hyperparathyroidism were more likely to have tooth extractions and periodontal interventions after parathyroidectomy.Conclusions
The risk of tooth extraction increased slightly during the first two years after parathyroidectomy. Thereafter, the oral health effects subsided. Pre-surgical serum ionized calcium levels and adenoma weight may indicate negative dental outcomes after parathyroidectomy. 相似文献18.
Daniel Belstrøm Maria Lynn Sembler‐Møller Nikolai Kirkby Sean L. Cotton Bruce J. Paster Palle Holmstrup 《Journal of periodontology》2018,89(5):531-539
1 Background
The purpose of this study was to characterize and compare subgingival and salivary microbiotas before and after periodontal treatment to learn if any changes of the subgingival microbiota were reflected in saliva. We tested the hypothesis that salivary levels of specific periopathogens correlate with corresponding subgingival levels before and after periodontal treatment.2 Methods
Twenty‐five patients with generalized chronic periodontitis completed the study. Stimulated saliva samples and subgingival plaque samples were collected at baseline and 2, 6, and 12 weeks after nonsurgical periodontal therapy. Subgingival and salivary microbiotas were processed by means of the Human Oral Microbe Next Generation Sequencing (HOMINGS) technique and characterized based on relative abundance. Spearman signed rank test was used to test correlation of periopathogens in subgingival and saliva samples.3 Results
Periodontal treatment resulted in significantly higher relative abundance of Streptococcus, Rothia and Actinomyces in combination with a significant decrease in Porphyromonas and Treponema in subgingival plaque samples. Relative abundance of the overall predominant genera in saliva was not influenced by periodontal treatment. However, there was a positive correlation between samples of subgingival plaque and saliva before and after periodontal treatment (p < 0.0001) with respect to relative abundance of specific periopathogens, such as Porphyromonas gingivalis (r = 0.68), Prevotella intermedia (r = 0.72), Filifactor alocis (r = 0.58), Treponema denticola (r = 0.51), Tannerella forsythia (r = 0.45) and Parvimonas micra (r = 0.45).4 Conclusions
Subgingival and salivary abundance of periodontal pathogens correlated before and after treatment. Thus, data from this study suggest that periopathogens identified in saliva may be spill‐over from the subgingival microbiota. 相似文献19.
Ashish Chakranarayan G. K. Thapliyal R. Sinha Menon P. Suresh 《Journal of maxillofacial and oral surgery》2009,8(3):265-269
Purpose
To evaluate the efficacy of two point rigid internal fixation in the immobilization of zygomatic complex fractures. 相似文献20.
Jorine A. Vermaire Cornelis P. J. Raaijmakers Evelyn M. Monninkhof Irma M. Verdonck-de Leeuw Chris H. J. Terhaard Caroline M. Speksnijder 《Oral diseases》2023,29(5):1937-1946