Evaluation of the Stability of Implants With Two Different Surface Treatments

University of Sao Paulo21 enrolled

Overview

The aim of this study is to compare the stability of dental implant surface treated by sandblasting abrasive particles and acid subtraction (Control) with hydrophilic surfaces dental implants (chemical) and with a higher surface energy (Test) for a period of 16 weeks after installation. The evaluation will be made by analyzing the resonance frequency (Ostell). The hypothesis to be tested will be that implants with hydrophilic surface show increased secondary stability prior to the implants treated by acid etching.

The selected patients will be randomly divided into two groups by computer-generated list. The control group will receive implant surface treated by acid etching and test group receive implants with hydrophilic surface (Test). Both the test and the control group will undergo the same pre-surgical, surgical and post-surgical protocols. The evaluation of the implant will be done by the analysis of resonant frequency wich will be performed on each implant with Osstell (Integration Diagnostics AB, Goteborg, Sweden) immediately after implant placement (baseline) and at follow-up sessions (1st, 2nd, 3rd, 5th, 8th, 12th and 16th weeks after installation) and coefficient of implant stability (ISQ) on these dates will be measured on a scale from 0 to 100. The smartpeg be used with special developed Healing without the use of pillars or intermediaries.

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

DIAGNOSTIC

Masking

DOUBLE

Enrollment

Conditions

Dental Implant Failed Pre-osseointegration Failure of Dental Implant

Interventions

Implant surgeryPROCEDURE

Dental implant surgery with two different kinds of implant surface (SLA and modified SLA)

Eligibility

Sex: ALLMin age: 18 YearsMax age: 75 YearsHealthy volunteers:

Medical Language ↔ Plain English

Inclusion Criteria: * Patients who had lost teeth in the posterior maxilla (region of premolars and molars, can be interspace or free end) in need of restoration with implant-supported prostheses * Able to understand and sign a waiver of informed free consent * Good oral hygiene * The receiving implant sites must have at least 3 months of healing after tooth extraction, proper height and width to install an implant of 4.3 mm in diameter and 10 mm of high. Exclusion Criteria: * Patients requiring implants in the mandible or anterior maxilla (bone type I and II), or to submit any of the following conditions: general contraindications for surgical procedures, uncontrolled diabetes, severe bruxism or clenching, pregnant and lactating women, active periodontal disease, smoking and use of alcohol or drugs * Patients who underwent radiotherapy near the buccal cavity regions chemotherapy and those who use or have recently used bisphosphonates, such as alendronate.

Locations (1)

Dentistry School - University of São Paulo

São Paulo, São Paulo, Brazil

Outcomes

Primary Outcomes

Loss of implant

If the implant has been not integrated to the bone!

Time frame: 4 months after surgery

Secondary Outcomes

Implant stability (ISQ)

If the implant get successively and it has been integrated to bone. The stability will be evaluated at the surgery day (T0), one week after surgery (T1),after 2 weeks (T2), after 3 weeks (T3), after 5 weeks (T4), after 8 weeks (T5), after 12 weeks (T6) and after 16 weeks (T7).

Time frame: Baseline, 1 to 16 weeks (4 months)

Data from ClinicalTrials.gov

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