CLINICAL OUTCOMES OF SPIRAL FIXTURES INSERTED IN PREMOLAR AREA: A PRELIMINARY STUDY

M. Danza

¹Senior Lecturer, Dental School, University of Pescara-Chieti, Chieti, Italy

Correspondence to:
Matteo Danza, M.D
Senior Lecturer, Dental School,
University of Pescara-Chieti,
Chieti, Italy
Private practice:
Via G. Carducci, 83,
65122 Pescara, Italy
e-mail: dama.t@fastwebnet.it

Received: 10 November 2015 Accepted: 02 January 2016

2038-4106 (2016) Copyright © by BIOLIFE This publication and/or article is for individual use only and may not be further reproduced without written permission from the copyright holder. Unauthorized reproduction may result in financial and other penalties. Disclosure: all authors report no conflicts of interest relevant to this article.

ABSTRACT

In the last decade, spiral implants were introduced as a new tool for oral rehabilitation. A retrospective study has been planned to verify the effectiveness of this system to replace missing premolars. A series of 91 spiral implants inserted to replace premolars were analyzed. Several variables related to the patient, anatomic site, implant, and surgery were investigated. Implant’ failure and peri-implant bone resorption were considered predictors of clinical outcome. Cox regression was then performed to detect statistically associated variables with the clinical outcome. From June 2010 to June 2014, 234 spiral implants were inserted in patients. Specifically, 91 fixtures were inserted to replace missing premolars. Sixty were inserted in females and 31 in males with a median age of 53 (max-min 16-89, STD = 14 years). Four failed (i.e., survival rate SVR =96%). The mean follow-up was 14 months (max-min 1-41, STD = 14 months). Among the studied variables, flapless surgery and computer-guided surgery have better outcomes. In the present report, the SVR and SCR were 96% and 90.1%, respectively.

KEYWORDS: spiral, implant, fixture, bone, remodelling, resorption, ridge, alveolar