Evolução do quociente de estabilidade do implante após colocação tardia de implantes dentários

Abstract

Introduction: Implant stability is essential in osseointegration; Primary depends on the mechanical stability and the secondary is biological. The functional loading moment depends on implant stability. The Implant Stability Quotient allows to keep track on the evolution of osseointegration. Objectives Main: To evaluate the evolution of the ISQ after delayed dental implant placement; to
compare success, implant failure and loading based on ISQ readings. Specific: To evaluate the relationship of torque with ISQ1 and other variables with
implant success and ISQ values. Materials and Methods: A retrospective clinical study using a convenience sample consisting of patients treated with dental implants (Anyridge®, MegaGen Implant, Daegu, South Korea) in the period between October 2022 and April 2023. ISQ1 measured on the day of implant placement using SmartPeg 67® and ISQ2 after 3 months. Variables recorded were demographics, insertion torque, loading/type of loading among others.
Results: The mean age of the participants was 52.68±11.94 years. The mandibular molars (n=10; 35.7%) followed by maxillary premolars (n=8; 28.6%) were the most frequent location, correspondingly bone types III and IV (n=12;42.9%) were the most frequent. In most cases (n=26; 92.9%) neither bone substitutes or membranes were used (n=17, 94.4%). In the majority, immediate loading was not performed (82.1%). The insertion torque was mostly between 35 and 45 N/cm2 (78.5%). Mean ISQ 1 and 2 values were respectively 73.67±4.57 and 77.1±3.34, with no statistically significant difference. Conclusions: The results suggest that there is a positive correlation between ISQ1 and 2, with no
statistically significant difference; No statistically significant differences were detected for any of the variables recorded on ISQ 1 and 2, including type/performance of loading and torque of insertion.

Date of Award	21 Jul 2023
Original language	Portuguese
Awarding Institution	Universidade Católica Portuguesa
Supervisor	Bruno Almeida (Supervisor) & Tiago Borges (Co-Supervisor)