A Comparative Evaluation of Vertical Marginal Gap for Vented and Precemented Cad-Cam Zirconium Copings on Angulated Abutments: An In vitro Study.

Objective: To evaluate vertical marginal gap after cementation of Zr (zirconium) copings with palatal vent, open vent, and precementation technique on angulated abutments resulting from cement entrapment between intaglio surface of copings and angulated abutments. Materials and Methods: Twenty-four angled abutments and 24 CAD-CAM Zr copings were assigned to three groups depending on the type of cementation technique, comprising eight copings with palatal vent, open vent, and no vent, respectively. Vertical marginal gaps between abutment shoulder and coping margin were evaluated at four points: buccal, palatal, mesial, and distal. The readings were statistically analyzed. Results: The average mean value of vertical marginal gap at all sites for Group A with palatal vent was 158.45, for Group B with open vent was 151.84, and for Group C using precementation technique was 163.58. A statistically non-significant difference was seen for values between all sites (P > 0.05) for all groups. Conclusion: The average vertical marginal gap for Group B was comparatively lower compared to Groups A and C.

Clinical Assessment of Immediate Autotransplantation of Mandibular Third Molars: An In Vivo Study.

INTRODUCTION: Transplanting a tooth from one area of the mouth to another is known as autogenous tooth transplantation. It is a great choice for restoring young patients' teeth with developing alveolar bone because it uses the patient's own tooth as the replacement rather than a false one. This study aims to evaluate pain, infection, mobility, resorption, ankylosis, and success rate in the replacement of mandibular non-restorable molars through an immediate autotransplantation of the nonfunctional impacted mandibular third molar. MATERIALS AND METHODS: In this in vivo study, 20 patients between the ages of 22 and 50 were selected. The cases in which the first or second mandibular molar was nonrestorable and had an impacted third molar for transplantation were selected. In all the cases, the nonrestorable molar was extracted and replaced with a nonfunctional, impacted third molar. All the cases were evaluated for pain, infection, mobility, ankylosis, and resorption at the postoperative second week, one month, third month, and six months. The pain was assessed on the visual analog scale (VAS), infection was assessed by the presence of purulent discharges, mobility was assessed on a clinical examination of tooth movements, ankylosis was seen radiographically as the obliteration of the periodontal ligament space, and the absence of the lamina dura and resorption were seen radiographically as radiolucency on the root surface. All the readings were tabulated and statistically analyzed. RESULTS: Pain was seen to be maximal at two weeks and minimum at six months. Infection was not seen at all time intervals. Mobility was reduced with time. There was no significant ankylosis or resorption. Out of the 20 cases, four patients required extractions due to resorption and grade 3 mobility. One patient showed ankylosis. The success rate of the autotransplantation was 75%. Fifteen patients showed well-defined lamina dura without ankylosis or resorption. CONCLUSION: Autotransplantation is a valuable tooth replacement option and more economical, especially when provided with proper case selection.

New design titanium miniplate versus conventional miniplate in treatment of mandibular angle fractures: A comparative study.

Introduction: Mandibular angle fracture (MAF) is the second most common site of all fractures of the mandible with the highest complication rate. Management of MAF has evolved in the past four decades. The purpose of the prospective study was to compare the efficacy of new design titanium miniplate (NDM) with conventional titanium miniplate (CTM) in the treatment of MAF. Objectives: Mouth opening, occlusion, bite force measurement, and radiographs compared preoperatively and first week, first month and third month postoperatively. Materials and Method: Fourteen patients diagnosed with MAF were randomly divided into two groups: Group A (seven patients) was treated with NDM and Group B (seven patients) with CTM. Patients were assessed preoperatively and postoperatively at an interval of one week, one month and three months. Results: Repeated measures ANOVA and Post hoc Tukey test showed a significant increase in bite force and mouth opening for both groups in first and third postoperative months. Unpaired t-test showed slightly better mouth opening in Group B and slightly higher bite force in Group A. Discussion: Both miniplates fulfilled all the study objectives and equally satisfactory healing was seen at the end of third month. NDM offers better stability, rigidity, and anatomic reduction of the fracture with a drawback of difficulty in adaptation and increased operative timing compared to CTM. Hence, we would like to conclude that both miniplates are equally efficient in the treatment of non-comminuted angle fractures with the NDM having upper hand in stability.

Lingual Frenectomy in Joubert Syndrome.

AIM: Our aim is to present a case of a rare disorder, such as Joubert syndrome (JS) which required oral surgical intervention under general anesthesia at a very young age to help in achieving normal developmental milestones. BACKGROUND: Ciliopathies are an emerging class of diseases of which JS is a significant member. There have been very few cases of JS with its distinguishing features which have been reported in recent literature. CASE REPORT: We herewith present a case of JS who reported to our unit with a complaint of speech abnormality. Intraoral examination revealed a tongue-tie which was planned for surgical release. As any drugs that interfere with respiratory depression have to be used with utmost care, adequate precautions were taken in this case and the patient was treated under general anesthesia. The tongue-tie was released and associated ham-artomatous outgrowths from the floor of the mouth were also excised. Appropriate postoperative care was taken and the patient was discharged. CONCLUSION: The patient treated by us did not reveal any significant intraoperative or postoperative complications. Treatment of cases of JS required a team effort of multiple dental and medical specialists. Long-term follow-up of such patients is required so that they achieve normal chronological development. CLINICAL SIGNIFICANCE: Joubert syndrome being a rare disorder requires special anesthetic care during any surgical procedure, especially that involving the oral cavity. The need and timing of surgical intervention in such cases should be carefully assessed and appropriate precautions should be taken.

Dentigerous cyst associated with an impacted anterior maxillary supernumerary tooth.

Most typical dentigerous cysts are commonly seen in association with third molars and maxillary canines. Only 5-6% of dentigerous cysts are associated with supernumerary teeth. We report a rare case of dentigerous cyst associated with an impacted anterior maxillary supernumerary tooth. The patient was treated surgically by enucleation of the cyst.

Oral capillary haemangioma mimicking pyogenic granuloma: a challenge for diagnosis and management.

Pyogenic granuloma (PG) is a localised granulation tissue overgrowth, in reaction to mild irritation. The aetiology of the lesion is not known, though it was originally believed to be a botryomycotic infection. The clinical diagnosis of such a lesion can be quite challenging. The purpose of this article is to report an unusual case of benign tumour in an adolescent boy who was clinically diagnosed as PG and histopathologically as capillary haemangioma. PG being a benign lesion; surgical excision was performed and predisposing irritants were removed.

Use of zirconia to restore severely worn dentition: a case report.

The management of tooth wear has been a subject of increasing interest from both preventive and restorative points of view. Severe tooth wear is frequently multifactorial and variable. Successful management is a subject of interest in dentistry. A critical aspect is to determine the occlusal vertical dimension (OVD) and a systematic approach that can lead to a predictable and favorable treatment prognosis. Management of patients with worn dentition is complex and difficult. Accurate clinical and radiographic examinations, a diagnostic wax-up, and determining OVD are crucial. This paper describes the full-mouth rehabilitation of a 47-year-old bruxer with a severely worn dentition.