Evaluation of Manual Insertion Torque of Dental Healing Abutments by Multiple Providers
Abstract
The aim of this study was to compare clinicians ability to hand tighten dental healing abutments of different types and sizes. In addition, this in vitro study examined if the clinicians experience in dentistry, gender and dental Area of Concentration (AOC) had any effect on the reverse torque values (RTV). Four ZimVie Certain internal connection dental implants (4.1mm x11.5mm) were placed in a printed jig and secured to a table using a vice. Four ZimVie dental healing abutments were chosen: 3mm One-Piece (OP-ZimVie), 3mm Two-Piece (TP-ZimVie),8mm One-Piece (OP-ZimVie), 8mm Two-Piece (TP-ZimVie). Thirty clinicians wore powder free exam gloves and were asked to hand tighten each healing abutment to 20 Ncm. The healing abutments were randomized in order and replaced every 5 providers to minimize thread fatigue. The investigator used a digital torque gauge to record the RTV. The data was analyzed using two-way ANOVA and a Shapiro Wilk test. The 3mm OP had the highest mean RTV of 15.67Ncm and the 3mm TP had the lowest mean RTV of 13.62 Ncm. The average RTV was 14.78Ncm which was below the manufacturers recommended insertion torque value. The two-way ANOVA revealed a significant difference between different abutment types with OP having significantly higher RTV values than TP (p = 0.031). The clinicians experience in dentistry, gender and AOC were not statistically significant. This in vitro study found: 1) OP abutments had higher RTV than TP abutments, 2) average RTV was below the manufacturers recommended insertion torque value for each abutment type and 3) clinicians experience in dentistry, gender and AOC had no effect on RTV.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 2023
- Accession Number
- AD1222420
Entities
People
- Gina B. Striffolino
Organizations
- Uniformed Services University of the Health Sciences