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International Dental Journal Aug 1995The aim of this study, performed in Bangkok, was to evaluate the possibility of reducing fissure caries development using an antimicrobial varnish, Cervitec. Children... (Clinical Trial)
Clinical Trial Comparative Study Randomized Controlled Trial
The aim of this study, performed in Bangkok, was to evaluate the possibility of reducing fissure caries development using an antimicrobial varnish, Cervitec. Children aged 7-8 years and 12-13 years, 251 in each age group, with at least 2 sound contra-lateral permanent molars, were selected. A split mouth method was used with one test and one control tooth within the same jaw. At baseline and after two years all children were investigated for DMFS and DMFT. In addition, the size of any cavities was estimated. From 200 children, plaque samples of test and control occlusal surfaces were collected at baseline and after one year and processed to estimate the number of mutans streptococci. Mutans streptococci in saliva were estimated by the Strip mutans method. Cervitec varnish, containing 1 per cent chlorhexidine and thymol was applied at baseline, after 3-4 and after 8-9 months. The results showed that: Cervitec varnish reduced fissure caries development significantly; the levels of salivary mutans streptococci at baseline were significantly correlated with caries status at baseline and with total caries increment over the two-year period; caries development in a fissure was significantly correlated to the level of plaque mutans streptococci at that same site; three months after the last varnish application, a certain reduction of mutans streptococci in plaque could be seen in the test teeth; comparing the size of the lesions, more large cavities were found in the untreated teeth. It is concluded that varnishes should be considered as further options for prevention of fissure caries, possibly in more individualised programmes or in combination with already established methods.
Topics: Adolescent; Anti-Infective Agents, Local; Cariostatic Agents; Child; Chlorhexidine; Colony Count, Microbial; DMF Index; Dental Caries; Dental Fissures; Dental Plaque; Drug Combinations; Humans; Molar; Pit and Fissure Sealants; Reagent Strips; Saliva; Streptococcus mutans; Thailand; Thymol
PubMed: 7558363
DOI: No ID Found -
Journal (Canadian Dental Association) Nov 1999Ultraconservative dentistry represents a great step forward for the dentist, the profession, and especially the patient. It involves the early detection and complete...
Ultraconservative dentistry represents a great step forward for the dentist, the profession, and especially the patient. It involves the early detection and complete elimination of all accessible and non-accessible carious material from the tooth. Untreated caries can be extremely and rapidly destructive. The earliest interception of decay maintains total dental health and increases the likelihood of the restored teeth lasting a lifetime.
Topics: Composite Resins; Dental Cavity Preparation; Dental Fissures; Dental Instruments; Dental Restoration, Permanent; Humans; Pit and Fissure Sealants
PubMed: 10612937
DOI: No ID Found -
Journal of the American Dental... Feb 2002
Topics: Adolescent; Age Factors; Aged; Cost-Benefit Analysis; Dental Fissures; Dentin; Enamel Microabrasion; Humans; Pit and Fissure Sealants
PubMed: 11868830
DOI: 10.14219/jada.archive.2002.0130 -
General Dentistry 1998Specific clinical techniques and practice philosophies are suggested to facilitate success with sealants when used by the private practice restorative dentist. Although... (Review)
Review
Specific clinical techniques and practice philosophies are suggested to facilitate success with sealants when used by the private practice restorative dentist. Although sealants have proven successful in academic and not-for-profit environments, this has not always transferred to the private sector. Methods and materials, together with economic realities, are all discussed and shortcuts that may lead to clinical failures are noted.
Topics: Child; Dental Care for Children; Dental Caries; Dental Fissures; Dental Restoration, Permanent; Humans; Patient Care Planning; Pit and Fissure Sealants
PubMed: 9663073
DOI: No ID Found -
Journal of Dental Research Nov 2012This study investigated the structure of the fissure fundus on occlusal surfaces with respect to the detection of possible irregularities below the enamel-dentin...
This study investigated the structure of the fissure fundus on occlusal surfaces with respect to the detection of possible irregularities below the enamel-dentin junction (EDJ). Occlusal surfaces were examined by micro-computed tomography (µCT). In total, 203 third molars with clinically sound occlusal fissures or non-cavitated lesions were selected. All specimens were scanned with µCT. Subsequently, each tooth was sectioned, and each slice was investigated by stereomicroscopy. In 7 of 203 molars (3.4%), demarcated radiolucencies below the EDJ were detected by µCT. These defects were obviously of non-carious origin, because the µCT images revealed no gradient of demineralization in the dentin. In all cases, a direct pathway between the oral cavity and the dentin was evident. The comparison of the µCT sites with conventional histological images also revealed defects in the dentin. These results demonstrate that demarcated radiolucencies below the EDJ may not necessarily be caries lesions according to µCT images and may be classified as possible developmental irregularities. To avoid misinterpreting µCT data, dental researchers should carefully consider this condition when analyzing µCT images. The clinical significance of this finding is that these defects may predispose molar teeth to early-onset caries in occlusal pits and fissures.
Topics: Dental Enamel; Dental Fissures; Dentin; Diagnosis, Differential; Humans; Molar; Tooth Crown; X-Ray Microtomography
PubMed: 22904204
DOI: 10.1177/0022034512458688 -
Hua Xi Kou Qiang Yi Xue Za Zhi = Huaxi... Apr 2009The purpose was to analyze the effects of three sterilization methods (dry heat sterilization, steam sterilization, and chemical sterilization) on the corrosion of...
[Effects of different sterilization methods on mechanical properties of dental fissure bureffects of different sterilization methods on mechanical properties of dental fissure bur].
OBJECTIVE
The purpose was to analyze the effects of three sterilization methods (dry heat sterilization, steam sterilization, and chemical sterilization) on the corrosion of dental fissure bur.
METHODS
200 dental fissure burs were distributed to 10 groups. Bending strength, elastic modulus, and torsional strength were measured by bending and torsional instrument and calculated with special designed software. Among the three sterilization methods, the steam sterilization group showed the most evident.
RESULTS
The corrosion was most severe in steam sterilization group, followed by chemical sterilization, dry heat sterilization. With the sterilization time increased, bending strength, elastic modulus, and torsional strength decreased respectively. Of the three sterilization methods, the mechanical properties were decreased most evidently by steam sterilization, followed by chemical sterilization and dry heat sterilization.
CONCLUSION
It is proved that the bending strength, elastic modulus and torsional strength have a tight relationship with the corrosion of dental fissure burs. The corrosion was most severe in steam sterilization group, followed by chemical sterilization, dry heat sterilization. In regards of the corrosive effect, the dry heat sterilization might be the best way to sterilize the dental fissure burs.
Topics: Dental Fissures; Dental High-Speed Equipment; Dental Instruments; Steam; Sterilization
PubMed: 19472889
DOI: No ID Found -
Dental Update Oct 1994The pit and fissure sealants that are commercially available today are designed to prevent plaque, bacteria and carbohydrates from entering the fissures and causing... (Review)
Review
The pit and fissure sealants that are commercially available today are designed to prevent plaque, bacteria and carbohydrates from entering the fissures and causing caries. This article will concentrate on contemporary diagnostic problems and indications for fissure sealing. Brief mention will be made of innovations in materials and techniques.
Topics: Dental Caries; Dental Fissures; Humans; Pit and Fissure Sealants
PubMed: 7641953
DOI: No ID Found -
Journal of the International... Dec 1990
Review
Topics: Bisphenol A-Glycidyl Methacrylate; Dental Caries; Dental Fissures; Humans; Methacrylates; Pit and Fissure Sealants
PubMed: 2151815
DOI: No ID Found -
Clinical Oral Investigations Apr 2012The purpose of this study is to perform a systematic investigation plus meta-analysis into survival of atraumatic restorative treatment (ART) sealants and restorations... (Comparative Study)
Comparative Study Meta-Analysis Review
UNLABELLED
The purpose of this study is to perform a systematic investigation plus meta-analysis into survival of atraumatic restorative treatment (ART) sealants and restorations using high-viscosity glass ionomers and to compare the results with those from the 2005 ART meta-analysis. Until February 2010, four databases were searched. Two hundred four publications were found, and 66 reported on ART restorations or sealant survival. Based on five exclusion criteria, two independent reviewers selected the 29 publications that accounted for the meta-analysis. Confidence intervals (CI) and or standard errors were calculated and the heterogeneity variance of the survival rates was estimated. Location (school/clinic) was an independent variable. The survival rates of single-surface and multiple-surface ART restorations in primary teeth over the first 2 years were 93% (CI, 91-94%) and 62% (CI, 51-73%), respectively; for single-surface ART restorations in permanent teeth over the first 3 and 5 years it was 85% (CI, 77-91%) and 80% (CI, 76-83%), respectively and for multiple-surface ART restorations in permanent teeth over 1 year it was 86% (CI, 59-98%). The mean annual dentine lesion incidence rate, in pits and fissures previously sealed using ART, over the first 3 years was 1%. No location effect and no differences between the 2005 and 2010 survival rates of ART restorations and sealants were observed. The short-term survival rates of single-surface ART restorations in primary and permanent teeth, and the caries-preventive effect of ART sealants were high.
CLINICAL RELEVANCE
ART can safely be used in single-surface cavities in both primary and permanent teeth. ART sealants have a high caries preventive effect.
Topics: Dental Atraumatic Restorative Treatment; Dental Caries; Dental Clinics; Dental Fissures; Dental Restoration Failure; Dentin; Glass Ionomer Cements; Humans; Schools, Dental; Survival Analysis; Tooth, Deciduous
PubMed: 21274581
DOI: 10.1007/s00784-011-0513-3 -
ZWR Nov 1989Due to long-term results with high success rate, pit and fissure sealing is recommended as approved method to prevent caries of pit and fissures. Therefore teeth should... (Comparative Study)
Comparative Study Review
Due to long-term results with high success rate, pit and fissure sealing is recommended as approved method to prevent caries of pit and fissures. Therefore teeth should be sealed as early as possible--when the tooth can be sufficiently isolated from moisture. The dentist should prefer the approved composite sealers to glass ionomer cements.
Topics: Child; Child, Preschool; Composite Resins; Dental Caries; Dental Fissures; Glass Ionomer Cements; Humans; Pit and Fissure Sealants
PubMed: 2700853
DOI: No ID Found