Aim The present study evaluated maximum principal stress, von Mises stress, and deformation on the mandible and surrounding structures during the insertion of an implant in various anatomical positions. Materials and Methods Finite element models of straight two-piece implants of 4.5 mm × 11.5 mm were modeled using Ansys software, v. 16.0 (Ansys, Inc., Houston, TX, USA). The mandibular model was derived through cone-beam computed tomography of a cadaveric mandible using Mimics software (Materialise NV, Leuven, Belgium). An osteotomy was performed at the first molar region, second premolar region, lateral incisor region, central incisor region, canine region, and second molar region that had varying bone densities. Implant insertion was simulated with a variable load of 1-180 Newton, which was applied axially downward with a rotational velocity of 30-120 rpm. Maximum principal stresses, von Mises stress distribution at the implant insertion site, and maximum deformation on the entire mandible were recorded during the insertion of the implants. Results Maximum principal stress was highest in the crestal area of the right first molar region and least in the middle third of the central incisor region during implant insertion. Von Mises stress in the mandible was highest in the right first molar region and the least in the lateral incisor region during implant insertion. The extent deformation was recorded on the x-axis, y-axis, and z-axis of the mandible. Deformation on the x-axis was highest at the crestal region of the canine and least for the lateral incisor. On the y-axis, deformation was highest at the symphysis region during implant insertion at the first molar region and the least at the condylar area during implant placement in the canine area. On the z-axis, the deformation was highest at the

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Oral and Maxillofacial region encompasses a wide spectrum of diseases, injuries and defects involving the head, neck, face, jaws and the hard and soft tissues of the oral cavity. Soft tissue injuries, when they occur in isolation or in combination with other injuries, are among the most challenging tasks to manage by the operator. In spite of their high incidence, there are very few studies noted in the literature which systematically elaborates the management of these injuries. This articles aims at emphasizing on the various dressings that can be used in the management of soft tissue injuries of the Oral and Maxillofacial region.

Introduction: The implants have brought a paradigm shift in the replacement of lost teeth. The complete dentures that are implant fixed have increased acceptance among patients. Since these are recently introduced, we aim to evaluate the prosthetic complications and the survival of the implant-fixed complete dental prostheses. Materials and Methods: We piloted a retrospective study among subjects who received “implant-fixed complete dental prostheses (IPs).” We included 100 subjects with different IPs from the department records who complied with the follow-up. Prosthodontic complications and the survival of the IP were noted and presented as percentages. Results: Of the 100 subjects finalized in our study, 78 had metal acrylic (MA) and 22 metal ceramic (MC). The mean survival of the MC and MA was 5.2 and 5.1 years, respectively. The most common minor and major complications were “loss of screw access hole material, chipping of the veneering material, and chipping events.” Parafunctional habits affected the survival of the IP along with the reluctance to wear the night guard. Conclusions: Good survival and only a few prosthetic complications are associated with the IP and showed good patient satisfaction.