Assessment of Stress Distribution Around Dental Implants Based on the All-on-Four Treatment Concept using Finite Element Analysis.

The present study was conducted to assess stress distribution around dental implants based on the all-on-four treatment concept. The finite element analysis (FEA) models comprised cancellous bone covered with cortical bone. Four dental implants were placed in two different designs. In model 1, the four implants were placed parallel to each other, whereas, in model 2, the all-on-four concept was followed. The vertical and lateral loads of various values were applied, and stress was evaluated. In model 2, the least stress was observed in both lateral and vertical loading in the peri-implant region. The all-on-four concept proved to be beneficial in reducing the stress around dental implants, thereby reducing the treatment cost.

Assessment of Bone Loss Around Dental Implant in Smokers.

Objectives: This research was done to assess how much bone is lost around dental implants in smokers. Material and Method: There were 80 participants total in the study, 40 of whom were smokers (Group I) and 40 of who were non-smokers (Group II). By evaluating the patients' clinical and radiographic data, the marginal bone-level measurements were determined. The acquired information underwent statistical analysis. Results: Smokers were found to have worse overall clinical parameters than non-smokers (P 0.05). Smokers experience more marginal bone loss around implants than non-smokers do. Conclusion: Smoking has a negative impact on the outcome rate of dental implants.

A Comparative Evaluation of Anesthetic Effectiveness of 4% Articaine vs 0.5% Bupivacaine for Lower Molar Tooth Extraction.

BACKGROUND: Safe and efficient pain control is essential for today's dental practice. This randomized controlled study was conducted to evaluate the effectiveness of 0.5% bupivacaine with 4% articaine in lower molar tooth extraction. METHODS: One hundred subjects were classified into two groups, with 50 samples for each. Group A participants were managed with 0.5% bupivacaine with 1:200,000 epinephrine and group B participants with 4% articaine with 1:100,000 epinephrine for mandibular first and second molar extraction. Criteria such as onset and duration of anesthesia, pain throughout the procedure, pain during injection, and pain after the procedure were evaluated. Systolic and diastolic blood pressure (mmHg) and heart rate (per minute)were evaluated for all participants. RESULTS: There was a faster onset (53.2 vs 83.1 s) and lesser duration of action (216.6 vs 298.4 min) with articaine (group B) compared to bupivacaine (group A). Thirty-eight (76.0%) participants in group A and 44 (88.0%) participants in group B did not require re-anesthesia, whereas 12 (24%) participants in group A and six (12%) participants in group B required one-time re-anesthesia and it was insignificant. CONCLUSION: Articaine has a faster onset but a relatively lower duration of action and requires statistically insignificant but lower re-anesthesia. As a result, articaine anesthesia can be efficiently recommended in oral surgical techniques.

Data on morphometric analysis of anterior teeth from Hazaribag College of Dental Sciences and Hospital,jharkhand.

It is of interest to document data on morphometric (measurement of external form) analysis of maxillary and mandibular anterior teeth collected from a dental set up using mesio-distal (MD) dimension. The mesiodistal dimensions of all permanent anterior teeth (central incisor, lateral incisor and canine) of 25 males and 25 females patients were recorded using digital vernier calipers. Data were charted and statistical analysis was done using Mann Whitney U test. Data shows sexual dimorphism for every tooth between males and females. However, dimorphism was exhibited only in maxillary and mandibular canine, mandibular central incisors, and lateral incisor. Hence,odontometric parameters offer simple, reliable and cost-effective in forensic investigation for recording gender discrimination.

Novel therapeutic approach for the treatment of periodontitis by curcumin.

AIMS AND OBJECTIVES: The aim of the present study was to evaluate the clinical and microbiological efficacy of locally delivered 1% curcumin gel as an adjunct to scaling and root planing in the treatment of chronic periodontitis. MATERIALS AND METHODS: The study group consisted of 25 patients, belonging to both sex, aged between 21-45 years. All patients diagnosed as chronic periodontitis with periodontal pockets of depth >5mm bilaterally were randomly selected. A split mouth design was followed and the patients received a complete prophylaxis including scaling and root planing. Examination of plaque index, bleeding index, probing pocket depth and clinical attachment level were measured for each patient. The test group received 1% curcumin gel along with scaling and root planing whereas the control group received scaling and root planing alone followed by microbiological samples taken at baseline, 1, 3 and 6 months interval. RESULTS: The 1% curcumin gel appeared to provide significant improvements in clinical parameters. Microbiological counts of Porphyromonas gingivalis, Prevotella intermedia, Fusobacterium nucleatum and capnocytophaga showed significant reduction in periopathogens at the test sites after six months when compared with that of control sites. CONCLUSION: Locally delivered 1% curcumin gel was more effective in inhibiting the growth of oral bacteria when used as an adjunct to SRP in the treatment of chronic periodontitis.