Sagittal Root Position of Maxillary Anterior Teeth in Nepalese Population Using Cone Beam Computed Tomography.

Background There are no radiographic studies in Nepalese population for determination of sagittal root positioning in maxillary anterior teeth. The sagittal root positioning and root angulation plays a vital role for case selection in immediate implant placement. Objective To evaluate, classify and compare sagittal root position between different maxillary anterior teeth. Method A 2-year retrospective study was conducted on 100 patients (53 males and 47 females) who fulfilled the inclusion criteria using cone beam computed tomographic images. The relationship of root of tooth to its alveolar housing were recorded as Class I to IV. In addition, the root angulation relative to the alveolar process was also measured. Result The sagittal root position (SRP) calculated on six maxillary anterior teeth on average was found to be 87.83% for Class I, 6.67% for Class II, 0.67% for Class III and 5.17% for Class IV respectively. The mean root angulation was found to be higher with canines on both side whereas lateral incisors had lesser mean root angulation. Root angulation of maximum teeth were between 10-20 degrees where immediate implant placement is possible. Conclusion Within the limitations of this study, the sagittal root positioning and root angulation in Nepalese population showed a favorable result for immediate implant placement. Maximum teeth were found to be close to the alveolar process with the exception of few teeth.

Crown Lengthening Surgery for Enhancing Restorative Treatment in Esthetic Zone.

For obtaining adequate retention for restoring cases like subgingival caries or extensive caries that shortens the tooth, short clinical crown, and fractures, it is usually necessary to disclose more tooth structure. Crown lengthening procedure is done to increase the clinical crown length for restorative or esthetic reasons without breaching the biologic width. These procedures are also utilized to improve the appearance and retention of restorations placed within the esthetic zone. We report a case of crown lengthening surgery with an internal bevel gingivectomy which was done in our department without compromising tooth support and esthetics.

Necrotizing Stomatitis in Varicella Zoster Infection.

Necrotizing periodontal disease are acute periodontal conditions which can present with simple gingivitis to more complex life threatening condition where it can perforate the skin of cheek. They are found in patients with severe illness, stress and reduced immunity. The prevalence of this whole group of disease is usually very low and is stated frequently as the first manifestation in HIV infection. Herpes zoster, a common dermatological condition is a secondary infection due to re-activation of Varicella zoster virus in a person previously acquiring a chicken pox in his/her lifetime. There are limited scientific literatures citing the occurrence of necrotizing stomatitis in varicella zoster infection. Thus, here we present a detail about a case and management of 46 years old female who had a hospital stay of over 5 days for treatment of Herpes zoster infection of mandibular nerve presented with necrotizing stomatitis lesion within oral cavity.

Peripheral Cemento-Ossifying Fibroma.

Peripheral cemento-ossifying fibroma (PCOF), a relatively uncommon lesion, reactive in nature is seen as an overgrowth of the gingival tissues often leading to periodontal problems. It is a benign tumor with slow-growing potential commonly affecting the anterior maxilla whose pathogenesis till date is uncertain. It is usually challenging to diagnose peripheral cemento-ossifying fibroma based on clinical observation and examination, hence histopathological examination is mandatory to arrive at an accurate diagnosis. Recurrence of the lesion is common unless and until it is completely excised. We present the report of two cases of peripheral cemento-ossifying fibroma of our department, complaining of a mass in the gingiva of posterior maxilla and mandible.