Caracterização da mucosa alveolar como factor de previsibilidade na preservação óssea alveolar após extracção dentária

: um novo método de classificação

Abstract

After tooth extraction, dimensional changes occur in the alveolar bone, related to cellular healing which inevitably leads to bone resorption. These changes must be known and properly evaluated before surgery and prosthetic rehabilitation. A group of 12 patients underwent post-extraction evaluation in Oral Surgery appointment at the University Dental Clinic of the Catholic University of Portugal in Viseu. In each patient was extracted, by flapless technique, a single maxillary tooth, with the requirement of the presence of adjacent teeth, located in region between the tooth 15 and 25, with indication for extraction. Inclusion and exclusion criteria were defined, and all patients with a systemic disease or local factors that enhance bone resorption were excluded. The vertical and horizontal bone dimensional changes were evaluated for each gingival group, previously set, in three different times, at the time of extraction (Baseline), 1 month after extraction (T1) and 3 months after extraction (T2). The results were predictable, according to the bibliography, checking whether there has vertical and horizontal bone loss, over the three months, were severe in the gingival group G1 and less pronounced in G3. It has been found that there is a strong correlation between loss of vertical bone volume and thickness of attached gingiva.

Date of Award	30 Oct 2015
Original language	Portuguese
Awarding Institution	Universidade Católica Portuguesa
Supervisor	Tiago Borges (Supervisor)