Online ISSN: 2515-8260

Keywords : Cone Beam Computed Tomography

Comprehensive evaluation of peri implant bone loss in patients receiving mandibular implant supportedover dentures- A cone beam computed tomography based clinical (Original Research) Study

Anil Sharma; Rajiv Kumar Gupta; Kirti Dahiya; Humaira Mushtaq; Abhi Sharma; Sidhartha Tomar

European Journal of Molecular & Clinical Medicine, 2020, Volume 7, Issue 11, Pages 5149-5157

Background and Aim: Crestal bone is a routine phenomenon around newly installed implant in the jaw bone. It shows different pattern as per patients habits and oral hygiene. Many clinical approaches have been discussed over the years to deal with this issue. Severe bone loss can eventually lead to implant mobility and exfoliation. The sole
endeavour of present study was to assess peri-implant bone loss in implant supported over dentures patients. It was completed utilizing cone beam computed tomography. Materials & Methods: Firstly, twenty new completely edentulous patients were selected from the regular opd of the department. Complete dentures were fabricated by usual manner. Two implants were decided to be placed in the bilateral canine regions in the mandibular arch. Standard osteotomy procedures were utilized for it. Authors planned to evaluate crestal bone losses around these implants. All four surfaces (mesial, distal, buccal, lingual) of implants were analyzed for bone loss at different time intervals. Bone losses were estimated after two months, four months and six months. Group one, group two and group three implants included in which crestal bone loss around all surfaces evaluated after two
months, four months and six months respectively. Cone beam computed tomography was used to calculate bone levels around each implant at the time period of two months, four months and six months. Informed consent was taken from the patients. Statistical Analysis and Results: Statistical analysis was done by statistical software Statistical Package for the  Social Sciences (SPSS). The resultant data was sent to suitable statistical tests to achieve p values, mean, standard deviation, standard error an 95% CI. P ≤ 0.05 was considered as statistically significant. All patients were further separated into five age groups. 2 patients were selected in the age range of 45-52 years. P value was not significant here. 4 patients were noticed in the age range of 52-58 years. P value was not significant for this age group. Total nine patients were identified in the age range of 59-65 years. Level of significance evaluation by pearson chi-square test [for group I and group III] shown significant values of p for all four studied surfaces [mesial, distal, buccal, lingual].Conclusion: Within the limitations of the study, authors concluded that there was obvious crestal bone loss around the implant surfaces. These losses were identified in all three time intervals of study. Relative crestal bone loss was minimum in the first two months on implant placement and maximum in the first six months on the implant placement. Authors also noticed significant differences in bone losses in first two and first six month of implant placement. However, CBCT assessment also verified that this relative increase of bone loss in six months was very minute.

Comparative evaluation of effectiveness of progressive occlusal equilibration using conventional and computerized analysis on crestal bone loss around single implant in posterior region

Dr Arihant Bathiya; Dr. Sweta Kale Pisulkar

European Journal of Molecular & Clinical Medicine, 2020, Volume 7, Issue 2, Pages 2073-2084

Abstract: Background: Dental implantology has emerged as treatment of choice for missing
tooth replacement. Implant occlusion is a dominant factor which affects implant success.
Various practices are there for occlusal consideration and its adjustment like articulating
paper and T scan for regularly employed in clinics. Very less literature is available
on effectiveness of better method for occlusal correction. Objectives: To assess and analyze
efficacy of occlusal equilibration using computerized analysis at various time intervals to
evaluate the crestal bone loss around single posterior implants. Methods: This study will be
performed on 50 partially edentulous patients with single posterior missing tooth will be
selected. Implant with two-stage protocol will be placed. Primary stability at first stage surgery
and secondary stability at second stage surgery will be evaluated. Immediately after
loading of implant CBCT will be taken to evaluate base line crestal bone level, with cement
retained PFM crown. In study group T scan is used as intervention. CBCT will be taken
after 12 months of placement of implant prosthesis to evaluate crestal bone level for all patients.
Results: Statistical significance of the mean differences between the measurements
in the interval of 12 months will be tested with Student’s paired t-test, Chi square test, and
unpaired t test. Conclusion: Periodic equilibration using T scan will be an effective protocol
to control the further crestal bone loss. There by this procedure will also be addressing
the complication in occlusal consideration in implantology, eventually result in implant

Modern Approaches To Diagnosis, Etiology And Pathogenesis Of The Upper Permanent Canine Retention Formation (Literature Review)

J.N. Bakaev; S. Sh. Olimov

European Journal of Molecular & Clinical Medicine, 2020, Volume 7, Issue 3, Pages 3815-3830

The article outlines the main reasons for the development and formation of the upper permanent canine retention. The author presented a wide literature review of both foreign and domestic scientists, detailed this pathology course and development. It also describes various methods for evaluating X-ray studies and modern approaches to diagnostics and treatment planning for the upper permanent canine retention, which are used in practice by an orthodontist.