View clinical trials related to Implant Stability.
Filter by:Some studies show that different types of threads in tapered implants result in differences in primary stability. The aim of this study is to a perform a prospective, controlled, randomized clinical trial comparing primary and secondary stability between long and standard thread implants in the treatment of partial edentulous patients.
The objective of this prospective study is to compare clinically and radiographically two different tissue-level implants, in partially edentulous patients in the posterior area of the maxilla and mandible. The primary objective of the study was to track the crestal bone level changes around the two implant systems. Secondary objectives were implant stability as well as initial soft tissue thickness which were evaluated throughout this study.
Statement of the problem: Osseo-integration of dental implants depends mainly on bone regeneration around dental implant. Hyperlipidemia has significant adverse effects on bone health, leading to lower bone mineral density and to higher risk of osteoporosis and bone fracture (Corwin 2003; Pirih, Lu et al. 2012). The effects of hyperlipidemia on bone health may also interfere with dental implant therapy since the host's bone quantity, quality and healing potential play an important role in osseointegration (Fedele, Sabbah et al. 2011; Gaetti-Jardim, Santiago-Junior et al. 2011; Olivares-Navarrete, Raines et al. 2012). Rationale for conducting the research: Hyperlipidemia has been associated with the pathophysiology of major diseases, such as atherosclerosis and osteoporosis. A high cholesterol level has significant adverse effects on bone, including lower bone density, volume and strength. Statins, drugs that lower serum cholesterol levels have beneficial effects on bone metabolism. Since host's bone quantity, quality and healing potential play a crucial role in osseointegration of dental implants, it was hypothesized that hyperlipidemia may negatively affect implant osseointegration.
Implants will be placed in posterior maxilla using two drilling methods; the osseodensification technique and standard drilling protocols. Implant stability will be measured right after implant placement and after 3 months. crestal bone level will be measured after implant placement and after 3 and 9 months.
OBJECTIVE: evaluate the effect of undersized drilling upon the primary and secondary stability of immediate implants placed in the anterior sector maxilla. PATIENTS AND METHODS Study design A randomized comparative clinical trial was carried out. Thirty conical MIS C1 grade 23 titanium alloy (Ti 6Al 4V Eli) implants with a rough surface subjected to dual acid etching and sandblasting, measuring 3.75 mm in maximum diameter and 13 mm in length (MIS® Implants Technologies, Ltd. Bar Levi, Israel), were placed immediately after removal a anterior maxillary tooth in a series of patients treated in the clinic of the Master of Dentistry and Dental Implantology (Santa María University, Dental School, Caracas, Venezuela). The study was approved by the local Ethics Committee. Patient selection To enrolled in the study, patients had to comply the inclusion/exclusion criteria established to the study: over 18 years of age with indication of one or more immediate implants in the anterior maxilla; no history of ischemic heart disease, uncontrolled diabetes, coagulation disorders, head or neck radiotherapy, intravenous bisphosphonates or uncontrolled periodontal disease. Based on a CTCB evaluation, the teeth involved should have presence of bone ≥ 5 mm from the tooth apex to the lower cortical layer of the nasal fossa / maxillary sinus and no vertical defects greater than 4 mm at the buccal or palatine alveolar crest. Also, patients must have capacity to understand the study protocol and fill consent form to participation in the study. Study procedure Two operators calibrated for immediate implant placement performed minimally traumatic tooth extraction following local infiltrating anesthesia with 4% articaine and 1:100,000 epinephrine (Artheek® 4%, New Stetic S.A.; Antioquia, Colombia). After evaluating the integrity of the bone walls, drilling sequence was established on a randomized basis. Conventional drilling (CD) sequence: - Marking drill ∅1.9 mm at 1500 rpm - Pilot drill ∅ 2.4 mm and 13 mm in length at 800 rpm. - Twist drill ∅3 mm at 400 rpm. Undersized drilling (UD) sequence: Marking drill ∅1.9 mm at 1500 rpm Pilot drill ∅ 2.4 mm and 13 mm in length at 400 rpm. Implant insertion A surgical motor (MCU MIS, model M0132, W&H, Burmoos, Austria) with a 20:1 reducing implant handpiece was used to insert the implants at 20 rpm and applying a torque of 10 Ncm. Following placement of the implant in the bed, manual insertion was continued to reach the final implant position, established as 4 mm from the gingival margin. Study variables Two torque meters (MIS® Implants LTD, models MT-RI040 and MT-RT070, Bar Levi, Israel) were used to insert and sequentially measure the maximum IT reached on positioning the implant in the socket. A Smart-peg Nro 49 model 100480 was fitted to the connection of each implant and an Osstell ISQ® (SN 4669 Osstell AB, Goteborg, Sweden) was used to perform RFA analysis and obtain corresponding ISQ value at insertion time (RFA1). A 4 mm height healing screw was used to seal the implant, and then additional RFA measurements was made at 6 week (RFA2) and 12 week (RFA3) post-implantation
The present study is a human, prospective, randomised controlled clinical trial conducted to explore and compare the clinical and radiological outcome of Osseodensification protocol with conventional implant site preparation protocol. The trial is in accordance with the Consolidated Standards of Reporting Trials (CONSORT) criteria, 2010.
its a experimental study comparing between the stability of immediate root fomed implant versus the conventional titanium implant