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Introduction: Early development of infection in periimplant tissues is often a cause of implant failure, as clinically assessed by checking bleeding on probing, redness, swelling and presence of pain. Radiographically, bone loss can be seen early in such cases. This can occur due to several possible host-related factors, such as periodontal disease or surgery related to a poor sterilisation protocol. Aim: To assess the peri-implant health among the implants placed in a private dental hospital in Chennai, India. Materials and methods. A retrospective cross-sectional study was conducted using 712 samples from the Department of Implantology after reviewing and analysing the data of 86,000 patients between June 2019 and March 2021. Microsoft Excel® was used to tabulate the collected data. The variables assessed were age, gender, presence of infection and site of implant placement. Chi square analysis was done with the level of significance set at p<0.05. Appropriate graphs, tables and charts were constructed using SPSS for a clear representation of the results obtained. Results and discussion: The sample had a gender distribution of 57.81% males and 42.19% females, 16.97% among 20-30-year-olds, 22.9% in 31-40-years-olds, 23.72% in 41-50-year-olds, 22.62% in 51-60-year-olds and 13.79% in 61+ year-olds. The most (27.29%) common site of implant placement was sextant 4, specifically in relation to the first molar. 99.58% of implant sites showed no signs of infection, and 0.43% of them showed poor peri-implant health post recovery period. Conclusions: Within the limits of the study, it can be concluded that post recovery peri implant health was good in 99.58% of implant sites, poor values being noticed in only 0.43% of implant cases. [ABSTRACT FROM AUTHOR]

Introduction: Dental implants have had a phenomenal rise in recent years. Design of the implant, biology of the bone, primary stability, osseointegration, prosthesis are the major factors taken into consideration for successful implant therapy. Primary stability is the initial engagement between bone and implant and one has to ensure that it should be strong enough. Implantologists completely monitor primary stability by synchronizing the above factors. Aim: To study the association between primary stability and crestal bone loss in implants placed in edentulous maxilla and mandible. Materials and methods: This is a retrospective study conducted in Saveetha Dental College and Hospitals, Chennai, India. The data of patients: age, gender, primary stability and crestal bone loss who had undergone implant placement from September 2019 to March 2021, was collected from the case sheets. The study had a sample size of 112 subjects. The data was tabulated in Excel and imported to SPSS for statistical analysis. Results and discussion: Most of the patients had no crestal bone loss, but a significant number of them had crestal bone loss of 1 mm and above. 2.68% of males and 0.89% of females had crestal bone loss of 4 mm and above. Primary stability of 30-40 Ncm was most prevalent among all age groups and gender. The association between primary stability and crestal bone loss was not significant. Conclusions: No significant association was evidenced between primary stability and crestal bone loss in implanted patients. Proper selection of bone graft materials and implant design are the key components of managing crestal bone loss. [ABSTRACT FROM AUTHOR]

Introduction: Crestal bone loss is the bone resorption which occurs around the implant neck. Early crestal bone loss during the healing phase is considered an acceptable physiological change but, when the bone loss continues, it may result in increased mobility, leading to failure of the implant. Aim: The aim of the present study is to assess the crestal bone level changes between two dental implant systems in edentulous posterior mandible. Materials and methods: The study included patients who had undergone implant placement in the posterior mandible, between November 2020 to January 2021 in Saveetha Dental College and Hospitals, Chennai, India. Data was tabulated and entered in Excel, then was analysed using SPSS package software. p<0.05 was considered to be the level of statistical significance. Results and discussion: The study evidenced no significant difference between the two implant systems and the amount of bone loss. The implants placed equicrestally had a higher amount of crestal bone loss, compared to those placed subcrestally. Conclusions: Within the limitations of this study, no significant difference was observed between the two implant systems and the crestal bone loss. The amount of crestal bone loss determines the success of the implant. [ABSTRACT FROM AUTHOR]

Introduction: The success rate of dental implants in treating partially edentulous and completely edentulous patients has a predictable outcome - a success rate of 98% and above. The success of implants depends on patient's clinical conditions, the surgical technique applied and the implant design. Bone quality and quantity determines the procedure, the design and type of dental implant system used. Aim: To study the association between age and bone density in implants placed in edentulous maxilla and mandible. Materials and methods: The study included patients who had undergone implant placement from June 2020-February 2021 in Saveetha Dental College and Hospitals, Chennai, India. Data regarding bone density of the implant site was collected and analysed. Association between age and bone density was recorded in Excel and subjected to statistical analysis. Results and discussion: In the present study, D2 bone was the most common bone density seen, 53% of the patients having D2 type of bone density in the lower posterior region. The next commonly seen type of bone density was D3. Chi square statistical analysis was done and the association between bone density and age was found to be statistically significant (p value - 0.03). Conclusions: The D2 bone was the most frequently found presence, followed by D3 in the missing edentulous sites. There was a significant association between age and bone density, suggesting that the D2 bone was most commonly seen in the age group of 28-37 years. [ABSTRACT FROM AUTHOR]

Introduction: The Schneiderian membrane is the mucous membrane that covers the inner aspect of the maxillary sinus cavity. It is very important to preoperatively evaluate its thickness for planning the surgical procedure in the region that involves the membrane, such as a sinus lift augmentation, which increases the possibility of membrane perforation or other complications. Aim: To assess the thickness of the Schneiderian membrane of the maxillary sinus and its correlation with demographic parameters. Materials and methods: This was a retrospective study based on data from 135 patients who reported to the Department of Implantology, Saveetha Dental College and Hospitals, Chennai, India between March 2020 and March 2021, obtained from the hospital records. Demographic data including age and gender and cone-beam computed tomography (CBCT) was collected and further analysed, recorded in Microsoft Excel software and subjected to statistical analysis using IBM SPSS statistics analyser version.23.0. Results and discussion: The overall mean value of the thickness of the Schneiderian membrane was 1.69± 1.54 mm. Among the 135 patients, 60.74% were males and 39.26% were females. Among the different age groups, 34.81% were of the 26-35 years age group, followed by 17-25 years with 25.19%, 36-45 years with 19.26%, 46-55 years and 56-65 years with 10.37% each. Conclusions: Within the limitations of the study, it was observed that the thickness of the Schneiderian membrane in young aged adults was lower, compared with the other age groups. As to gender, males seemed to have a thicker membrane than females. [ABSTRACT FROM AUTHOR]