Journal of Conservative Dentistry
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   2004| April-June  | Volume 7 | Issue 2  
    Online since October 12, 2010

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Methods Of Detecting Microleakage
M Kumar, L Lakshminarayanan
April-June 2004, 7(2):79-88
Microleakage is defined as the passage of ions, bacteria or bacterial toxins between the tooth restoration interface. The different causes for occurrence of microleakage are, poor adaptation of restorative materials, its contraction during setting, non-adherence to tooth structure, deformation under loads or temperature induced volume changes. To avoid this microleakage becoming a complication we should first be able to detect the materials that tend to leak. This article presents the methods to detect microleakage in invitro and invivo conditions.
[ABSTRACT]   Full text not available  [PDF]
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A Clinical Comparison Of Visible Light Activated, Unfilled, Fluoride And Non-Fluoride Containing And Filled Fluoride Containing Pit And Fissure Sealants
N. D Shashikiran, V. V Subbareddy, A Deshpande
April-June 2004, 7(2):70-76
The purpose of this study was to compare the clinical efficacy of visible light activated, unfilled, fluoride and non fluoride containing and filled fluoride containing pit and fissure sealants. Sixty mandibular permanent first molars were selected and they were divided into 3 groups comprising 20 teeth each. In Group I visible light activated fluoride containing filled pit and fissure sealant, in Group II visible light activated fluoride containing unfilled pit and fissure sealant in Group III, visible light activated non fluoride containing unfilled pit and fissure sealants were used. All these teeth were evaluated at 3, 6 and 9 months for their retention, marginal adaptation and for dental caries when each parameter was considered separately, there was no difference in the success rate between the groups. However intergroup variation for Group III showed significant values (P<0.05) between baseline to 6 months interval for retention. For marginal adaptation, it showed significant difference for Group II between baseline to 3 months interval (P<0.05) and from baseline to 6 months interval for Group III (P<0.05). All the sealants showed protection against caries at the end of 10 months except for Group III.
[ABSTRACT]   Full text not available  [PDF]
  508 69 -
Effect Of Immediate And Delayed Polishing On The Marginal Seal Of Resin Modified And Conventional Glass Ionomer Restorations Using Stereomicroscope – An In Vitro Study
A Gupta, N. M Dhanyakumar, V Shivanna
April-June 2004, 7(2):89-93
This study evaluated the effect of polishing after one day storage in artificial saliva on the marginal gap formation around fillings using conventional glass ionomer (Fuji II) and resin-modified glass ionomer (Fuji II LC). Standardized cylindrical cavities were prepared on the grounded flatg proximal surface of 40 freshly extracted non carious premolars, 20 teeth were restored with Fuji II and other 20 with Fuji II LC following the manufacturer’s instructions. The groups with delayed polishing were restored I day earlier, stored in artificial saliva at 37°C and finished polished on the same day as the groups with immediate polishing. The results showed a gap of 21 to 60 mm for resin modified and conventional glass ionomer respectively, when polished immediately after the setting procedure. In contrast, a marginal gap width of 9 to 19 mm was measured when the specimens were polished after one-day storage. Hygroscopic expansion, bond strength and flexural strength play important roles in reducing the marginal gap in tooth cavities filled with two types of glass ionomer restorative materials.
[ABSTRACT]   Full text not available  [PDF]
  392 52 -
A Comparative Evaluation Of Depth Of Cure Of A Posterior Composite Cured With Light Emitting Diodes And Halogen Light Cure Unit
R. H Korapati, K Rajkumar, L Lakshminarayanan
April-June 2004, 7(2):58-62
The purpose of this study was to evaluate the depth of cure of a dental composite (Filtek P-60, 3M ESPE) using a recently introduced LED-based light curing unit (Elipar freelight, 3M) and a conventional halogen – based LCU (Spectrum 800,Dentsply) A total of 24 specimens were prepared. They were divided into 2 groups: Group I – consisted of 12 specimens cured by halogen unit. Group II – consisted of 12 specimens cured by LED unit. The specimens were subdivided into 2 groups of 6 specimens each. Subgroup A – specimens with height of 2 mm Subgroup B – specimens with height of 4 mm After curing, the top and bottom hardness of each specimen was measured using Vickers hardness tester. The ratio of bottom and top hardness values was used to calculate the percentage depth of cure. The results were statistically analyzed. No significant difference was found in the depth of cure between the LED and halogen LCU.
[ABSTRACT]   Full text not available  [PDF]
  339 59 -
Clinical Management Of An Unusual Case Of Dens Evaginatus In A Maxillary Central Incisor
K Hotani, S Garg
April-June 2004, 7(2):55-57
A case report of an unusual case of dens evaginatus in maxillary right central incisor is presented. The patient had an abnormally shaped maxillary right central incisor that was successfully treated timely to provide the greatest opportunity for complete root development. Esthetic recontouring, followed by composite veneering was done to improve appearance and seal the dentinal tubules. Early diagnosis and treatment should be sought in cases of dens evaginatus.
[ABSTRACT]   Full text not available  [PDF]
  340 57 -
Caries Inhibition By Polyacid – Modified Composite Resins And A Conventional Glass Ionomer Cement – An Invitro Study
S Kamat, B. R Goel
April-June 2004, 7(2):65-69
75 standardized class V cavities were prepared in 38 extracted human molar teeth. 50 cavities were restored with compoglass and Dyract AP and remaining 25 cavities were filled with Fuji II cap. The teeth were submerged in acid gel (lactic acid, gelatin thymol pH 4.5) for 28 days and then resin embedded. Ground sections were examined at X 160 magnification for enamel and dentin surface lesion depths and enamel and cavity wall lesion depths and evidence of caries inhibition. The results of this study suggested that PMCR’s provide less caries inhibition than glass ionomer cement.
[ABSTRACT]   Full text not available  [PDF]
  298 40 -
Dental Research Abstracts
Amrit Raj Bahl
April-June 2004, 7(2):94-97
Full text not available  [PDF]
  187 42 -
Vimal Sikri
April-June 2004, 7(2):53-53
Full text not available  [PDF]
  172 32 -
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