But the question that arises is, why has the pendulum swung towards the non-extraction mode of treatment over the past decennia? (26.8% of cases treated with extraction in the last decade compared to 50% in 1980s)11 Arch Changes in Non-Extraction Space is required in dental arches in cases of arch length-tooth size discrepancies; to relieve crowding, leveling of curve of spee, correct transverse and antero-posterior deficiencies. Various methods of gaining space are employed in Orthodontics, besides extraction; Proximal reduction, distalization of molars and expansion. Arch expansion is one of the conservative methods of gaining space. Types of Expansion • Orthodontic Expansion: Predominantly dentoalveolar changes produced by lateral movement of the buccal segments- Conventional fixed appliance, Self-ligating appliance, Wilson arch, Expansion screws, Coffin spring.
Pathological tooth migration (PTM) is indisputably one of the dentoalveolar disorders that cause special concern to patients especially when occurring in the anterior segment. There appear to be multiple factors which are important in the expression of the tooth migration namely, bone loss, followed by tooth loss and gingival inflammation. Other factors that can be contributory to tooth migration include an aberrant frenal attachment, pressure from the cheek and tongue as well as that from the granulation tissue in the periodontal pockets, gingival overgrowth due to drugs occlusal factors such as missing or unreplaced teeth, shortened dental arches, excessive vertical overlap, posterior bite collapse, class II malocclusion and habits such as
After considering the clinical and radiographic findings, an attempt to retrieve the foreign object using H files and thereafter completing the root canal treatment nonsurgically was planned. But the needle was snugly fitted inside the canal and its removal became difficult even after repeated attempts. Therefore, surgical intervention was planned after hematological investigations and written consent form from the parents . After the administration of the bilateral infraorbital block along with nasopalatine nerve block, a crevicular incision was given from mesial of 12 to distal of 23 followed by two releasing incisions. A mucoperiosteal full thickness flap was raised and
4. Study justification 4.1 Background 4.1.1 Introduction Bone substitution is becoming more relevant in an age where the prevalence of bone disorders and conditions has a steep upward trend and where the population grows older, is more obese and has low physical activity. The expectations are aiming for a worldwide doubled incidence. (15) Because of the histological compatibility and the immunogenic advantage, autologic bone grafts nowadays still serve as the golden standard in bone substitution. Moreover, autografts have several key components to achieve osteoinduction (i.e., bone morphogenetic proteins (BMPs), osteogenesis (i.e., osteoprogenitor cells) and osteoconduction (i.e., three-dimensional and porous matrix).
Laparoscopic splenectomy is preferred over open splenectomy as it is safe and effective.29It has an exclusion criterion for the following cases; trauma, portal hypertension and high anesthesia risk due to cardiorespiratory and allied conditions.29 A patient with an indication for splenectomy has to undergo a few preoperative examinations as well as vaccinations. A spiral CT scan is used to check the size and volume of the spleen, as well as accessory splenic tissue preoperatively.30 Vaccination against pneumococcal, meningococcal and Haemophilus influenza type B infection is of standard recommendation two-three weeks prior splenectomy.30 Under general anesthesia, the patient is placed laterally on the right decubitus position with the left
Orthokeratology (also known as Ortho-K) uses an extremely high oxygen permeable corneal mold to temporarily reshape the cornea. The molds are worn while sleeping and taken out upon wakening. This means that your child’s sight will be good during the day hence allowing him/her to go to school, exercise and swim without needing glasses or contact lenses. What can we achieve with Ortho-K? The aim of Ortho-K is to control progression of myopia with the additional benefit of independence from glasses and contact lens in the day.
Introduction This literature review has examined the importance of gingival retraction in dental & Surgical procedures. Today, gingival retraction is the most widely used technique in the construction of dental prosthetics (Abadzhiev, 2009). There are various materials that can be used for retracting gingiva, however, it is important to select the material considering its effect on periodontium. For a prosthetic restoration to be functional and to be successful in long term, it should be properly adapted to the finish line of the preparation. Therefore, marginal integrity becomes an important factor for the success of the prosthetic restoration.
Topical anesthesia is given to decrease discomfort during the procedure. It also permits sensory testing. But, this technique evaluates mainly pharyngeal stage of swallowing with a brief period of ‘white-out’ during swallow. (55) The advantages of this procedure are that it is less invasive, can be repeated, can be performed bedside and pharyngeal sensations can be tested. The disadvantages are - it needs skilled performer and needs costly equipment.
AUTOTRANSPLANTATION: THE BEST IMPLANT FOR A MISSING TOOTH IS A NATURAL TOOTH ABSTRACT: Autogenous tooth transplantation, or autotransplantation, is the surgical movement of a tooth from one location to another in the same individual. Although, once thought to be experimental, autotransplantation has achieved high success rates and is an excellent option for tooth replacement. Although the indications for tooth autotransplantation are narrow, careful patient selection coupled with an appropriate technique can lead to exceptionally well esthetic and functional results. This procedure is advantageous since the placement of an implant-supported prosthesis or any other form of prosthetic tooth replacement is not needed. This case report is one such example of a successful tooth autotransplantation.
This procedure was repeated until the required depth of tissue is removed and ablation of the pigmented gingiva was accomplished without any bleeding. Surgical area was covered with a periodontal dressing and post operative instructions were given to the patient. An analgesic was prescribed for the management of pain and periodontal dressing was removed after one week