ABSTRACT
Abstract: Malignant melanoma of the oral cavity is a rare neoplasm that arises from a benign melanotic lesion within normal mucosa. Malignant melanomas of the oral cavity are extremely rare, accounting for 0.2% to 8% of all malignant melanomas. It occurs approximately four times more frequently in the oral mucosa of the upper jaw usually on the palate or alveolar gingiva. Oral malignant melanoma is caused by unknown factors; benign pigmentation may precede the neoplasm by several years. The malignant transformation of benign melanosis is associated with poor prognosis. Tumor size and metastases are prognostic tools for the disease. Therefore dental clinician must carefully examine the head, neck, oral cavity, or any pigmented lesion that exhibit growth potential. Here, we are presenting a case of oral malignant melanoma located on maxillary gingiva in a 52 year old female patient.

ABSTRACT
Abstract: Introduction: Pleomorphic adenoma is a benign neoplasm that develop at the expense of the salivary gland. It evolves without symptoms; the reason why late consultations are often observed. The size of its volume can have an important functional implication. Observation: A 22 years old patient was referred by a dental surgeon for a palatal swelling evolving for two years. Intraoral examination presented an ovoid palatal mass not crossing the median line. It was covered with normal mucosal. The swelling on palpation was non tender and with a firm consistency. The scanner presented a well limited homogenous lesion located at the palate. Excision was done under general anaesthesia. Palatal silicone plate was used to protect the operated wounds. Post operation evolution was simple. Discussion: Pleomorphic adenoma is one of the most frequents benign salivary glands tumours. It is relatively rare intraorally, but when it occurs it is mostly located at the palate. It is recommended to use a palatal plate after surgery to facilitate healing and promote oral functions like phonation, as well as feeding. However, most often we are faced with unforeseen events that do not permit us to follow the usual pattern. Conclusion: Oral surgeon must be able to adapt to any situation in order to provide quality services regardless of the context.

ABSTRACT
Traumatic injury to the primary teeth can cause significant alteration of the underlying permanent dentition because of the close anatomic relationship between the developing permanent teeth and the apices of the overlying primary incisors. Aim: This case report describes a rare complication of odontoma -like malforamtion along of the permanent tooth, resulting from the intrusion of the predecessors at very young age.Clinical and radiographic examination revealed unerupted left maxillary central incisor blocked by a compound odontoma.The treatment plan was the surgical removal of the odontoma. Clinical and radiological follow-ups have been established to monitor the eruption of the permanent tooth.

ABSTRACT
Residual diastema closure treatment is popular treatment in esthetic dentistry. Indeed these median anterior diastems can compromise the harmony of a patient's smile. Thinks to the advances in the field of adhesive dentistry, practioners can use direct composite restoration to solve these situations. This restorative approach is simple, fast, predictable and less expensive than indirect restorations. It present many adventages such us conservative and esthetic treatment, adequate interproximal contact establishment, an esthetic emergence profile with parodontal papilla respect. In this article, we will describe, through clinical cases, the closure of diastema inter incisor by direct composite resin.

ABSTRACT
Implant dentistry serves as an excellent treatment option to restore the edentulous areas. People with existing natural dentition often have a hard time psychologically accepting the idea of a removable appliance. Patients' preference for choosing which partial edentulous space has never been explored. We present one unique case that had two Kennedy’s partial edentulous situations (one tooth missing) with one in the esthetic zone (maxillary premolar) and the other in a non-esthetic zone (maxillary molar). The patient opted for restoring the mandibular tooth, first as part of his self reliance test for using implant supported restoration. A two stage surgery saw an endosseous (5.3 × 10 mm) implant fixture placed over which porcelain fused to metal restoration was screwed to the abutment. While the patient was happy with the outcome of the mandibular prosthesis, he never turned to restore the maxillary partial edentulous space

ABSTRACT
An insincere student can always outsmart his peer and finish his allotted work without actually delivering the deserved goods to his patient. Such a probability is more in institutes with less teacher student ratio and with overburdened staff. An elderly male patient undergoing complete denture treatment by an intern had received a denture with poor aesthetics and stability. The patient was anxious, embarrassed and demanded an immediate replacement of the denture. Examination of the maxillary complete denture revealed severely proclined denture teeth as a major source of the problem. Treatment planning involved an attempt to correct existing dentures using a novel chairside approach which, if found unsatisfactory, would result in the fabrication of new denture. The technique involved using a centric relation record to do a clinical remount on a mean value articulator following which the faulty anterior teeth were removed and replaced using a denture over impression. The advantage of this chairside technique is that it allows a clinician/patient to perform/approve a denture trial, while disadvantage is the union between the artificial teeth and the denture base is with self - cure repair resin

ABSTRACT
Aim: The purpose of this study is to evaluate the prevalence and various reasons given for permanent teeth extractions in a dental clinic of a Teaching Hospital in Maiduguri, Nigeria. Materials & Methods: The clinical records of patients who attended the clinic and the work book of the oral surgery clinic were collected and analyzed according to gender, age and reasons for extraction. The age ranges from 16 to 75 years but this was then grouped according to age groups of ten years each. Results: Dental caries was the leading cause of extraction (69.9%) disimpation/pericoronitis was 10.9% while periodontal disease, dento-alveolar abscess, failed amalgam restorations, trauma, removal of supernumerary teeth and endodontic failure accounted for 8.6%, 4.0%, 3.8%, 1.2%, 1.0% and 0.6% respectively, 77.5% of all extraction occurred within the age of 16 – 35 years, 90.3% of all extraction were within the age of 16 45 and of the 77.5% extraction in the 16 – 35 years age group, 75.6% of these were due to caries. More extractions were carried out in females (53.6%) than in male (46.4%). Conclusion: Extraction as a result of dental caries is growing at an alarming rate yet there is no oral health policy in place while place in Nigeria and some developing economics therefore is an urgent need for formulation of oral health policies and effective institution of appropriate dental health care strategies that will ensure and promote oral health care. Clinical Significance: is to evaluate and analyze the level of loss of teeth in order to dense a means of halting or reducing the rate of tooth extraction