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General Dentistry 2019
Topics: Dental Fissures; Humans
PubMed: 31454317
DOI: No ID Found -
Journal of the American Dental... Sep 2011The authors conducted a study to survey the perspectives of dentists regarding the 2010 American Dental Association (ADA) recommendation to seal non-cavitated carious...
BACKGROUND
The authors conducted a study to survey the perspectives of dentists regarding the 2010 American Dental Association (ADA) recommendation to seal non-cavitated carious lesions (NCCLs) in children and young adults.
METHODS
The authors mailed a questionnaire to a randomly selected sample of 2,400 general dentists (GDs) and pediatric dentists (PDs) in the United States. The sample was chosen by the ADA's Survey Center. The questionnaire included two photographs of NCCLs (permanent first molar and premolar) in a 12-year-old child. Respondents were provided with radiographic findings and asked to choose from several management options.
RESULTS
In the absence of radiographic evidence of caries, 37.4 percent and 42.3 percent of GDs and PDs, respectively, indicated that they would seal the NCCL in the molar. For the premolar, a significantly lower percentage of GDs than of PDs indicated that they would seal the NCCL. With radiographic evidence of caries in dentin, less than 4 percent of all dentists surveyed indicated that they would seal the NCCLs, and more than 90 percent indicated that they would remove the caries and place restorations. Less than 40 percent of dentists indicated that they sealed NCCLs in their practice.
CONCLUSIONS
The U.S. dentists surveyed have not adopted evidence-based clinical recommendations regarding the sealing of NCCLs. Practice Implications. New educational and dissemination programs should be developed regarding these evidence-based caries management approaches.
Topics: Attitude of Health Personnel; Bicuspid; Child; Dental Caries; Dental Fissures; Dental Restoration, Permanent; Dentin; Evidence-Based Dentistry; Female; General Practice, Dental; Guideline Adherence; Humans; Male; Molar; Patient Care Planning; Pediatric Dentistry; Photography, Dental; Pit and Fissure Sealants; Practice Guidelines as Topic; Practice Patterns, Dentists'; Radiography; Surveys and Questionnaires; United States
PubMed: 21881070
DOI: 10.14219/jada.archive.2011.0324 -
Community Dental Health Dec 2008To report the prevalence and severity of dental caries and to identify caries risk indicators among gender, clinical and socioeconomic variables in 5-year-old children...
OBJECTIVE
To report the prevalence and severity of dental caries and to identify caries risk indicators among gender, clinical and socioeconomic variables in 5-year-old children attending preschools in Piracicaba, Brazil, in 2005.
METHOD
The random sample consisted of 728 subjects attending public and private preschools that were examined by a calibrated dentist. Dental caries was measured using WHO criteria. The socioeconomic variables (type of school, monthly family income, number of people living in the household, parents' educational level and home ownership) were collected by means of a parental semi structured questionnaire.
RESULTS
The mean dmft was 1.30 (SD=2.47); 62.2% were caries-free. The multiple logistic regression analyses showed that the risk indicators of caries were father's incomplete college education and presence of initial lesion.
CONCLUSIONS
The prevalence of dental caries in 5-year-old preschool attenders in Piracicaba was moderate, and father's educational status below undergraduate level, as well as presence of initial lesions, were risk indicators of the disease.
Topics: Brazil; Child, Preschool; DMF Index; Dental Caries; Dental Fissures; Educational Status; Fathers; Female; Humans; Logistic Models; Male; Prevalence; Risk Factors; Sex Factors; Socioeconomic Factors; Surveys and Questionnaires
PubMed: 19149305
DOI: No ID Found -
International Journal of Oral Science Jun 2017The aim of this ex vivo study was to evaluate the infiltration capability and rate of microleakage of a low-viscous resin infiltrant combined with a flowable composite...
The aim of this ex vivo study was to evaluate the infiltration capability and rate of microleakage of a low-viscous resin infiltrant combined with a flowable composite resin (RI/CR) when used with deproteinised and etched occlusal subsurface lesions (International Caries Detection and Assessment System code 2). This combined treatment procedure was compared with the exclusive use of flowable composite resin (CR) for fissure sealing. Twenty premolars and 20 molars revealing non-cavitated occlusal carious lesions were randomly divided into two groups and were meticulously cleaned and deproteinised using NaOCl (2%). After etching with HCl (15%), 10 premolar and 10 molar lesions were infiltrated (Icon/DMG; rhodamine B isothiocyanate (RITC)-labelled) followed by fissure sealing (G-ænial Flo/GC; experimental group, RI/CR). In the control group (CR), the carious fissures were only sealed. Specimens were cut perpendicular to the occlusal surface and through the area of the highest demineralisation (DIAGNOdent pen, KaVo). Using confocal laser-scanning microscopy, the specimens were assessed with regard to the percentage of caries infiltration, marginal adaption and internal integrity. Within the CR group, the carious lesions were not infiltrated. Both premolar (57.9%±23.1%) and molar lesions (35.3%±22.1%) of the RI/CR group were uniformly infiltrated to a substantial extent, albeit with significant differences (P=0.034). Moreover, microleakage (n=1) and the occurrence of voids (n=2) were reduced in the RI/CR group compared with the CR group (5 and 17 specimens, respectively). The RI/CR approach increases the initial quality of fissure sealing and is recommended for the clinical control of occlusal caries.
Topics: Bicuspid; Composite Resins; Dental Caries; Dental Fissures; Dental Leakage; Dental Marginal Adaptation; Humans; In Vitro Techniques; Materials Testing; Microscopy, Electron; Molar; Pit and Fissure Sealants; Surface Properties
PubMed: 28621326
DOI: 10.1038/ijos.2017.15 -
Pediatric Dentistry 2003The purpose of this in vitro study was to determine the effect of different cleaning methods and the use of post-etching drying agents, as well as the influence of...
PURPOSE
The purpose of this in vitro study was to determine the effect of different cleaning methods and the use of post-etching drying agents, as well as the influence of fissure types on the microleakage and penetration ability of fissure sealants.
METHODS
Ninety extracted human molar teeth were randomly divided into 9 groups of 10 each. The treatment groups were defined by the combination of different cleaning methods (traditional pumice prophylaxis, air abrasion with Prophyflex, and air abrasion with Airflow handy) and different drying agents (no drying agent, alcohol 99%, and acetone 99.5%). The teeth were thermocycled (5,000 cycles at 5 degrees C-55 degrees C) and were then immersed in a solution of 5% methylene blue for 24 hours. Microleakage, penetration ability, and fissure types were examined after sectioning. Multiple regression analyses were used for statistical analysis.
RESULTS
No significant difference was found in microleakage and the penetration ability between the use of different cleaning methods and sealant placement with or without drying agents (P>.05). Y2 fissure type exhibited significantly higher unfilled areas than other fissure types (P<.001).
CONCLUSIONS
Neither air abrasion with acid etching nor the use of post-etching drying agents decreased microleakage and improved the penetration ability of sealants significantly compared to the conventional sealant application. Fissure type was significantly related to the penetration ability of sealants.
Topics: Air Abrasion, Dental; Dental Cavity Preparation; Dental Enamel Permeability; Dental Fissures; Dental Leakage; Desiccation; Humans; Molar; Pit and Fissure Sealants; Regression Analysis
PubMed: 14733465
DOI: No ID Found -
Veterinary Journal (London, England :... Jan 2020Fissures on the occlusal surface of equine cheek teeth are commonly encountered during oral examination. Generally, their presence is considered abnormal but their...
Fissures on the occlusal surface of equine cheek teeth are commonly encountered during oral examination. Generally, their presence is considered abnormal but their aetiopathogenesis and clinical impact on pulp disease is still undetermined. The aims of this research were to study the extent of occlusal cheek teeth fissures using high-resolution X-ray computed tomography (μCT) imaging and their histological characteristics. Twenty-seven teeth (of 15 horses) were scanned using μCT imaging to analyse fissure extent. Histological examination of a subset of teeth (n=7) was performed. Forty-three type 1 fissures (35 type 1a, eight type 1b) were identified. The mean length of the fissure of type 1a and type 1b on the occlusal surface was 3.47+/-1.60mm and 13.64+/-7.40mm, respectively. Their mean depth was 13.22+/-10.76mm and 7.42+/-6.42mm, respectively. Potential risk factors associated with fissure depth were identified using a multivariable mixed model The location of the fissure and Triadan number were significantly associated with fissure depth. Fissures could be identified on histological sections with the presence of organic material inside the fissure, microorganisms in the continuation of the fissure extending into the dentinal tubules and the presence of reactionary dentine. This study suggests that fissures can provide a pathway for microorganisms to enter the dentinal tubules, potentially resulting in local pulpal inflammation. It appears that in healthy teeth, vital odontoblasts react by producing reactionary (tertiary) dentin, which lacks patent tubules and thus provides a proper seal.
Topics: Animals; Dental Fissures; Dentin; Horse Diseases; Horses; Molar; Tomography, X-Ray Computed
PubMed: 31982081
DOI: 10.1016/j.tvjl.2019.105421 -
Journal of Dentistry Aug 2000To assess the effect of different modes of fissure preparation and filling level on the quality of pits and fissure sealants. (Comparative Study)
Comparative Study
OBJECTIVE
To assess the effect of different modes of fissure preparation and filling level on the quality of pits and fissure sealants.
METHODS
Various modes of fissure preparation in combination with two filling levels were examined. A total of 90 caries-free extracted human molar teeth were divided into three groups according to fissure preparation: (a) no mechanical preparation; (b) mechanical preparation with a round carbide bur; and (c) mechanical preparation with a tapered fissure diamond bur. All fissures were acid-etched and each group was subdivided according to filling level, either to the border or overfilled, using Helioseal (Vivadent, Schaan, Lichtenstein) as a sealant material. A modified microleakage assay was performed, combining occlusal loading and thermocycling, prior to staining with 0.5% Basic Fuchsin. After sectioning, teeth were examined and photographed in a reflected light microscope, sealant retention was observed and recorded. Microleakage and sealant penetration depths were measured for each section. Two-way ANOVA was used for statistical analysis.
RESULTS
Sealant penetration and retention were significantly improved by mechanical preparation compared to non-prepared fissures (p<0.0001), and preparation with a tapered fissure diamond bur was superior to the round carbide bur. Overfilled fissures caused significantly higher levels of microleakage (p<0.004).
CONCLUSIONS
Based on the results of this in vitro study, it is suggested that fissure sealant quality may be improved by mechanical preparation, preferably with a tapered diamond bur, and filling just to the border. Overfilling of fissures should be avoided.
Topics: Acid Etching, Dental; Analysis of Variance; Bite Force; Composite Resins; Dental Bonding; Dental Cavity Preparation; Dental Fissures; Dental High-Speed Equipment; Dental Leakage; Diamond; Humans; Materials Testing; Molar; Pit and Fissure Sealants; Rosaniline Dyes; Surface Properties; Thermodynamics; Tungsten Compounds
PubMed: 10856805
DOI: 10.1016/s0300-5712(00)00016-6 -
Community Dentistry and Oral... Jun 2006To analyze the reproducibility of a calibration trial, at different diagnostic thresholds of dental caries, in a 12-month evaluation.
OBJECTIVE
To analyze the reproducibility of a calibration trial, at different diagnostic thresholds of dental caries, in a 12-month evaluation.
METHODS
A group of dental examiners (n = 11), who had previous experience in epidemiological surveys, participated in the study. An initial training phase (theoretical and clinical) and five calibration exercises (baseline, 3, 6, 9 and 12 months) were arranged. World Health Organization (WHO) criteria, including the active initial lesions (IL) were used. Six- to 7-year-old children took part in the study. They were selected according to past history and dental caries activity. The data were analyzed at WHO and WHO + IL diagnostic thresholds in accordance with tooth and dental surfaces.
RESULTS
Excellent mean intra- and inter-examiner Kappa values were obtained for both diagnostic thresholds, in accordance with tooth and surface, during the calibration phases. However, the most relevant errors were related to the decayed component and to IL diagnosis.
CONCLUSION
It was possible to use the methodology proposed in this study in epidemiological surveys when examining the mixed dentition, although new strategies to improve training in IL diagnosis and calibration are necessary.
Topics: Calibration; Child; DMF Index; Dental Caries; Dental Enamel; Dental Fissures; Dentition, Mixed; Epidemiologic Methods; Follow-Up Studies; Humans; Observer Variation; Reproducibility of Results; World Health Organization
PubMed: 16674753
DOI: 10.1111/j.1600-0528.2006.00278.x -
Journal of Public Health Dentistry 2002Dental caries in the primary dentition has received renewed attention in recent years because caries in the primary dentition is predictive of later caries experience,...
BACKGROUND
Dental caries in the primary dentition has received renewed attention in recent years because caries in the primary dentition is predictive of later caries experience, and because of efforts to address early childhood caries. More detailed caries diagnostic criteria have been developed and used for the permanent teeth; however, such criteria have not been widely adopted for caries diagnosis in the primary dentition.
METHODS
As part of the Iowa Fluoride Study, caries diagnostic criteria were developed specifically for the primary teeth. The criteria included noncavitated (d1) lesions and cavitated (d2-3) lesions. Examinations were conducted on 698 children in the primary dentition by two trained examiners who did duplicate examinations on 11 percent (n = 67) of these children.
RESULTS
Interexaminer agreement for any d1 and any d2-3 lesions at the person level was 100 percent. At the tooth level for d1d2-3f, there was 98.5 percent agreement and kappa was .91. For d1 at the tooth level, agreement was 97.0 percent agreement and kappa = .24. For d2-3 it was 99.4 percent agreement and kappa = .81. Prevalence of untreated d2-3 was 16.5 percent, while that of d1 was 24.1 percent. Nearly 73 percent had no d2-3 or filled surfaces, while over 63 percent had no d1, d2-3, or filled surfaces. Decay experience was most common on the primary second molars. About 56 percent of untreated d2-3 decay was located in the pits and fissures, while 58 percent of d1 decay was located on smooth surfaces.
CONCLUSION
Despite some concern with reliability of diagnosing d1 lesions, it appears that the d1d2-3 criteria are informative and useful in assessing the primary dentition.
Topics: Child, Preschool; Dental Caries; Dental Fissures; Female; Humans; Iowa; Male; Observer Variation; Prevalence; Tooth, Deciduous
PubMed: 11989205
DOI: 10.1111/j.1752-7325.2002.tb03430.x -
Journal of Dentistry Feb 2014The aim of this clinical study was to evaluate the retention rate and caries-prevention effect of a flowable composite compared to a conventional resin-based sealant in... (Comparative Study)
Comparative Study Randomized Controlled Trial
OBJECTIVES
The aim of this clinical study was to evaluate the retention rate and caries-prevention effect of a flowable composite compared to a conventional resin-based sealant in a young population over a 24-month period.
METHODS
Thirty-four patients, ranging in age from 16 to 22 years, diagnosed with at least 2 non-cavitated pit-and-fissure caries in the first and second molars were selected for this randomized split-mouth design trial. A total of 220 sealants, were placed in 117 upper molars and 103 lower molars. The teeth were sealed with a flowable resin composite (Tetric Evo Flow) or a sealant material (Helioseal F). Each restoration was independently evaluated in terms of retention and the presence of caries at baseline and at 1, 6, 12, and 24 months. Data were analyzed using non-parametric Mann-Whitney U and Friedman 1-way ANOVA tests at p<0.05.
RESULTS
Tetric Evo Flow showed complete retention with 100%, 95.5%, 93.8%, and 88.5% at 1, 6, 12, and 24-month evaluations, respectively, while Helioseal F retention rates were 98.1%, 95.5%, 94.8%, and 85.4%, respectively, for the same evaluation periods. At the 24-month recall, 4 (4.2%) total losses were observed in subjects treated with Tetric Evo Flow and 2 total losses (2.1%) for Helioseal F, respectively. No significant differences were observed between the materials in retention rates or caries incidence for each evaluation period (p>0.05).
CONCLUSION
Placement of flowable composite as fissure sealants in the younger population seems to be as effective as conventional fluoride containing fissure sealants for the prevention of fissure caries.
CLINICAL RELEVANCE
The use of a flowable composite as a fissure sealant material, in conjunction with a total-etch, single bottle adhesive, yielded better retention than did the conventional fluoride containing resin-based fissure sealant over a 24-month period in young patients.
Topics: Adolescent; Cariostatic Agents; Composite Resins; Dental Bonding; Dental Caries; Dental Fissures; Dental Materials; Female; Fluorides; Follow-Up Studies; Humans; Male; Methacrylates; Molar; Pit and Fissure Sealants; Young Adult
PubMed: 24296163
DOI: 10.1016/j.jdent.2013.11.015