Avaliação clínica das alterações dimensionais na preservação óssea alveolar após exodontia

Abstract

As a consequence of dental extractions some dimensional changes occur in the alveolar bone. These changes are related to alveolar bone healing in which invariably occurs alveolar bone resorption. The labial and palatine height of alveolar ridge and interproximal bone crests, as well as labial-palatine/lingual dimension represent the main alveolar bone dimensional changes caused by bone resorption. Such alterations should be well known for the correct surgical and prosthetic planning and could be prevented or corrected by alveolar bone preservation techniques. A group of patients was submitted to post-extraction evaluation in the Oral Surgery appointment at the University Dental Clinic of the Catholic University of Portugal in Viseu. In each patient was extracted, by a flapless technique, a single maxillary tooth, with the presence of adjacent teeth, located in the region between 15 and 25 with extraction indication previously defined. Patients with systemic condition or local factors that enhance bone resorption were excluded. The assessment of vertical and horizontal bone dimensional changes and height of the attached gingiva was assessed in three different times: at the time of extraction (baseline), one month after extraction (T1) and three months after extraction (T2). According to several studies the results were predictable. There was vertical and bone loss, with higher vertical bone loss incidence. There was also a correlation between the loss of horizontal bone volume and decrease of the height of attached gingiva.

Date of Award	29 Jul 2015
Original language	Portuguese
Awarding Institution	Universidade Católica Portuguesa
Supervisor	Tiago Borges (Supervisor)