Related Experiment Video
Updated: Dec 23, 2025
05:42
Dynamic Navigation for Dental Implant Placement
Published on: September 13, 2022
4.3K
A Comparative Analysis of Implants Presenting Different Diameters: Extra-Narrow, Narrow and Conventional
Henrique Tuzzolo Neto1, Alessandra Sayuri Tuzita1, Sérgio Alexandre Gehrke2
1Dental School, Universidade Paulista-UNIP, São Paulo 04026-002, Brazil.
Materials (Basel, Switzerland)
|April 23, 2020
Summary
This study compared the fracture resistance of dental implants. Smaller diameter and single-piece implants demonstrated significantly lower resistance to force and bending compared to larger, conventional types.
Area of Science:
- Biomaterials Science
- Dental Implantology
- Mechanical Engineering
Background:
- Dental implant stability and longevity are crucial for successful restorations.
- Understanding the mechanical properties of different implant designs is essential for clinical application.
- Previous research has focused on various aspects, but a direct comparison of fracture resistance across multiple implant diameters and types remains important.
Purpose of the Study:
- To conduct a comparative analysis of the fracture resistance of extra-narrow, narrow, and regular dental implants.
- To evaluate the maximum force limit and maximum bending moment of different implant configurations.
- To determine the influence of implant diameter and design (single-piece vs. Morse taper) on mechanical failure.
Main Methods:
- Four groups of 15 implants each were tested: single-piece extra-narrow, single-piece narrow, Morse taper narrow with solid abutments, and Morse taper conventional with solid abutments.
- Implants were subjected to mechanical testing using a universal testing machine to determine maximum force and bending moment.
- Statistical analysis included Shapiro-Wilk, ANOVA, and Tukey tests (p < 0.05).
- Scanning electron microscopy (SEM) and profilometry were used for sample analysis.
Main Results:
- All groups exhibited statistically significant differences in fracture resistance (p < 0.05).
- Regular Morse taper implants (G4) showed the highest resistance to force (419.10 N) and bending moment (4096.7 Nmm).
- Extra-narrow single-piece implants (G1) demonstrated the lowest resistance (134.29 N, 1612.02 Nmm).
- Single-piece implants (2.5 mm and 3.0 mm) deformed in the body, not the abutment region.
Conclusions:
- Implant diameter is a critical factor influencing fracture resistance, with smaller diameters exhibiting lower mechanical strength.
- Conventional Morse taper implants offer superior resistance to fracture compared to single-piece designs.
- Clinical selection of dental implants should consider the mechanical demands of the intended application to ensure long-term success and prevent failure.
