Radicular cyst arising from deciduous teeth is exceedingly rare accounting for <1% of all radicular cysts. A total of 122 cases have been reported to date in the English language literature. We present a rare case of a radicular cyst associated with a decayed deciduous maxillary molar tooth without any history of prior pulp therapy. Our aim is to emphasize the recognition of inflammatory radicular lesions associated with deciduous teeth which may adversely impact underlying permanent successor.
Background and Objectives:To investigate whether salivary contamination during various stages of the bonding procedures of Xeno III and Clearfil SE Bond influences shear bond strength.Materials and Methods:The occlusal surfaces of thirty six maxillary premolar teeth were ground and divided into two groups containing eighteen specimens each, which was subdivided into three sub groups: Group I - Xeno III, Group II - Clearfil SE Bond, Subgroup A - Uncontaminated (control), Subgroup B - Contaminated with saliva before application and light curing, Subgroup C - Contaminated with saliva after light curing. Composite resin Filtek Z350 was packed using Teflon mold cured and subjected to shear bond strength analysis using universal Instron machine.Results:Statistical analysis was made using One-way ANOVA and Tukeys HSD test. Clearfil SE Bond showed very high statistically significant reduction in the bond strength, when salivary contamination took place after light curing; whereas, Xeno III showed very high statistically significant reduction when salivary contamination took place before application and light curing.Conclusion:Clearfil SE Bond showed more tolerance to salivary contamination of dentin and higher shear bond strength value, when compared to Xeno III.
Introduction:
Sex identification of skeletal remains is one of the prime factors employed in identification of an individual. Teeth, the most hard and stable human tissue, which is resistant to physical insults, serve as a valuable material for forensic, anthropological, odontologic and genetics. Among the four main attributes of biological identity, gender determination is usually the first step in the human identification process. Hence, the main objective of the present study was to assess the dimorphic status of mesiodistal (MD) width, labiolingual (LL) width as well as cervicoincisal (CI) length of the crown in both maxillary and mandibular permanent incisors, canines and first molars.
Materials and Methods:
The present study comprised a set of 100 casts (50 males and 50 females) between the age group of 20–50 years of age. Impressions were made using alginate impression and study models were prepared using dental stone. The CI length of the crown, maximum MD width and maximum LL width of both maxillary and mandibular permanent incisors, canines and first molars were evaluated using digital Vernier calipers. The obtained data were analyzed using linear discriminant analysis and logistic regression method.
Results:
This study concludes that MD dimension of maxillary canine and CI dimension of mandibular first molar as reliable indicators for gender determination than mandibular canine, maxillary and mandibular central incisors and maxillary first molar dimensions.
Conclusion:
This study concludes that MD dimension of maxillary canine and CI dimension of mandibular first molar as reliable indicators for gender determination than mandibular canine, maxillary and mandibular central incisors and maxillary first molar dimensions.
Objective: To evaluate the marginal quality of class II composite restorations using a bulk fill composite when restored in bulk compared to an incremental filling technique following two different modes of bonding, total etch and self-etch technique. Methods: Forty-eight standardized class II box-shaped cavities were prepared on both the proximal surfaces of twenty-four mandibular molar teeth. Cavities were prepared with no-245 carbide bur on proximal surfaces. The teeth were divided into two groups, Group 1 which followed the self-etch strategy (n=12) and Group 2 which followed a total etch strategy (n=12). Each group was further divided into two subgroups based on the restorative technique followed, Sub group A – cavities on the mesial side which were bulk filled and Sub group B – cavities on the distal side which were incrementally filled. Specimens were placed in 2% methylene blue dye for 24 hrs and were then sectioned. Specimens were evaluated under stereomicroscope for microleakage. Data obtained was statistically analyzed using Kruskal Wallis test and Dunn’s multiple comparison test. Results: The results showed that between the two groups, the total etch technique showed the highest microleakage. Greater microleakage was observed in bulk fill technique when compared with incremental technique in group II. Conclusion: The degree of microleakage in a class II composite restoration is influenced not only by the adhesion strategy followed for the bonding agent, but also by the technique followed during composite restoration
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