Browsing by Author "S.M. Karthickraj"

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Comparative evaluation of hard and soft tissue parameters by using short and standard dental implants for prosthetic rehabilitation of posterior mandible: A split mouth study
(Ariesdue, 2019) D.S. Yadav; F. Durrani; F. Rahman; P.O. Borang; S. Kesarwani; S.M. Karthickraj
Aim: The length of fixtures is always standardized with the concept for better bone to implant contact and successful osseointegration. Lots of studies have justified the use of short implants of less than 10 mm as an alternative for resorbed ridges in maxilla and mandible. The present project was conducted to check the viability of short implants in complex prosthetic rehabilitations. Materials and methods: Eleven patients received a total of 18 short implants (3.3/6 mm - 4.2/9.5mm) and 18 standard implants (3.75/11 mm and 4.5/11.5 mm) in the posterior mandible. Marginal bone loss was evaluated immediately after the delivery of the prosthesis, then after 3, 6, 12 and 18 months. Same measurements were done for standard implants as the study design was split mouth. Results: The survival rate of short implants 18 months after prosthesis delivery was 94.4% and it was 100% for standard implants. There was no significant difference between implants at the time intervals of 6 and 18 month's post-delivery of crowns and bridges. Mean crestal bone loss was 1.77±0.22 mm and 2.03±0.21 mm for short and standard implants respectively at 18 months of follow up, which was statistically significant. One short implant failure was seen before the loading of prosthesis. Conclusion: Short implants may be considered as an alternative for complex augmentation procedures in mandible and maybe in maxilla too. Patient should be educated before for the reduced survival rate of short implants compared to standard implants. © ARIESDUE.
Comparative evaluation of hard and soft tissue parameters by using short implants and standard long implants with sinus lift for prosthetic rehabilitation of posterior maxilla
(Wolters Kluwer Medknow Publications, 2024) Farhan Durrani; S.M. Karthickraj; Fouzia Imran; Shweta Ahlawat; Ekta Kumari; S. U. Gokila Vani
Objective: The objective is to compare and evaluate the hard and soft tissue parameters by using short and standard long implants with sinus lifting in the posterior maxilla. Materials and Methods: Eleven patients with complaints of missing upper back teeth were enrolled in the study for implant-supported rehabilitation and were categorized into two groups: Group long (GL): longer implant (>8 mm) placement, preceded by Sinus Augmentation. Group short (GS): short implant (≤8 mm) placement, without sinus augmentation. The primary outcome measured was cumulative survival rate (CSR) in the compromised partial edentulous posterior maxilla. Secondary outcomes measured were implant stability (IS), marginal bone level alterations (MBL), pocket probing depth (PPD), crown-to-implant ratio, and any complications. Results: The difference in CSR between the groups was not statistically significant (P = 0.317). High stability was achieved immediately after the placement of the implants, in both groups (GS: 64 ± 4.07, GL: 65.58 ± 9.75); this difference in the mean ISQ (IS quotients) values was not found to be statistically significant at implant placement (P = 0.7). The mean MBL reported in the study at the end of 12 months of prosthesis function was - 0.762 ± 0.48 mm and - 0.7 ± 0.34 mm for GS and GL, respectively. The mean PPD measurements in GS and GL groups were 1.917 ± 0.68 mm and 1.833 ± 0.38 mm, respectively, and it was not statistically significant (P = 0.8). Conclusion: Within the limitations of the present study, the obtained results indicate that short implants provided a similar clinical and radiographic performance compared to long implants placed in combination with a sinus augmentation procedure (lateral window) up to 12 months after prosthetic loading. © 2024 Indian Society of Periodontology | Published by Wolters Kluwer - Medknow.
Evaluation and comparison of stress distribution around periodontally compromised mobile teeth splinted with different materials: Three-dimensional finite element analysis
(Wolters Kluwer Medknow Publications, 2019) Farhan Durrani; Arpit Galohda; Sanjay Rai; Nishant Singh; Rati Verma; Dhananjay Yadav; S.M. Karthickraj
Background: Progressive attachment loss around the teeth because of periodontal disease can result in increased tooth mobility. This adversely affects patient's comfort, function, and esthetics. Periodontal splinting helps in accomplishing stability by redistributing the functional and parafunctional forces. There are various materials that have been used for periodontal splinting. Fiber-reinforced composite, composite resin, and metal-reinforced composite are often used as splinting materials for periodontally compromised teeth. In our study, a comparison was done among these materials for their ability to distribute the stresses at different bone levels in mobile lower incisors splinted together with canines. Materials and Methods: Five patients of age group 25-50 years with Grade 2 and 3 mobile incisors having 40% or more bone loss and firm canines with optimal bone support were selected. From the computed tomography scan of each patient, three models were developed demonstrating splinting of mandibular incisors and canines with metal-reinforced composite, fiber-reinforced composite, and composite resin. So in total, 15 models were developed and each one of them was subjected to vertical and transverse loads of 150 N. Pattern of stress distribution was observed in these models using three-dimensional finite element analysis. Results: After splinting, the stress on the canine increased when bone levels around incisors decreased while stress on incisors reduced. Conclusion: Tested splinting materials were successful in stress distribution, and metal-reinforced composite was found to be better than the other splinting materials. © 2019 Indian Journal of Dental Research.