Abstract : Comparative evaluation of the stability of two different dental implant designs and surgical protocols—a pilot study [1]
The purpose of this study was to compare a parallel wall design implant to a tapered apex design implant when placed in the posterior maxilla using two different surgical protocols.
Twenty-seven patients (30 implants) were divided into three groups. All implants were 4 mm wide in diameter and 8 mm long.
Group A received 10 tapered implants (OSPTX) (Astra Tech OsseoSpeed TX™) using the soft bone surgical protocol (TXSoft).
Group B received 10 tapered implants (OSPTX) (AstraTech OsseoSpeedTX™) using the standard surgical protocol (TXStd).
Group C received 10 parallel wall implants (OSP) (AstraTech OsseoSpeed™) using the standard surgical protocol (OStd).
All implants were placed in the posterior maxilla in areas with a minimum of 8-mm crestal bone height.
Resonance frequency measurements (implant stability quotient (ISQ)) and torque values were recorded to determine initial implant stability. All implants were uncovered 6 weeks after placement and restored with a functionally loaded resin provisional screw-retained crown. Resonance frequency measurements were recorded at the time of implant placement, at 6 weeks and 6 and 12 months. Twelve months after implant placement, the stability of the implants was recorded and the final restorations were placed using custom CAD/CAM fabricated abutments and cement-retained PFM DSIGN porcelain crowns. After implant restoration, bone levels were measured at 6 and 12 months with standardized radiographs.
Radiographic mean bone loss was less than 0.5 mm in all groups, with no statistically significant differences between the groups. Implant survival rate at 1 year was 93.3%, with 2/30 implants failing to integrate prior to functional loading at 6 weeks. No statistically significant difference was found between ISQ measurements between the three groups at all time intervals measured. Strong positive correlations were found between overall bone loss at 6 months and insertion torque at time of placement. A very weak correlation was found between insertion torque and ISQ values at time of implant placement.
Serial posts:
- Abstract : Comparative evaluation of the stability of two different dental implant designs and surgical protocols—a pilot study [1]
- Abstract : Comparative evaluation of the stability of two different dental implant designs and surgical protocols—a pilot study [2]
- Background : Comparative evaluation of the stability of two different dental implant designs and surgical protocols—a pilot study [1]
- Background : Comparative evaluation of the stability of two different dental implant designs and surgical protocols—a pilot study [2]
- Methods : Comparative evaluation of the stability of two different dental implant designs and surgical protocols—a pilot study [1]
- Methods : Comparative evaluation of the stability of two different dental implant designs and surgical protocols—a pilot study [2]
- Results : Comparative evaluation of the stability of two different dental implant designs and surgical protocols—a pilot study
- Discussion : Comparative evaluation of the stability of two different dental implant designs and surgical protocols—a pilot study [1]
- Discussion : Comparative evaluation of the stability of two different dental implant designs and surgical protocols—a pilot study [2]
- Conclusions : Comparative evaluation of the stability of two different dental implant designs and surgical protocols—a pilot study
- Notes : Comparative evaluation of the stability of two different dental implant designs and surgical protocols—a pilot study
- References : Comparative evaluation of the stability of two different dental implant designs and surgical protocols—a pilot study [1]
- References : Comparative evaluation of the stability of two different dental implant designs and surgical protocols—a pilot study [2]
- References : Comparative evaluation of the stability of two different dental implant designs and surgical protocols—a pilot study [3]
- Author information : Comparative evaluation of the stability of two different dental implant designs and surgical protocols—a pilot study
- Rights and permissions : Comparative evaluation of the stability of two different dental implant designs and surgical protocols—a pilot study
- About this article : Comparative evaluation of the stability of two different dental implant designs and surgical protocols—a pilot study
- Table 1 Patient selection criteria : Comparative evaluation of the stability of two different dental implant designs and surgical protocols—a pilot study
- Table 2 Outcome success criteria : Comparative evaluation of the stability of two different dental implant designs and surgical protocols—a pilot study
- Fig. 1. Implant design. The OSPTX and OSP implants are manufactured from high-grade commercially pure titanium with surface roughness produced via a fluoride treatment process. The OSP implant is a screw-shaped self-tapping implant. The diameter used in this study was 4.0 mm. The implant length used in this study was 8 mm. The OSPTX implant has the same features as the OSP except the apex of the implant is tapered : Comparative evaluation of the stability of two different dental implant
- Fig. 2. ISQ values at placement, 6 weeks, 6 months, and 1 year. Mean and standard deviation of ISQ values taken at placement, 6 weeks, 6 months, and 1 year is presented. No statistical significant difference was determined between ISQ values at all time points. (p < 0.05) : Comparative evaluation of the stability of two different dental implant
- Fig. 3. Mean bone loss at 6 months and 1 year. Mean bone loss distribution charts at 6 months and 1 year present no statistically significant difference. p value at 6 months was 0.2981 and at 1 year 0.6613 : Comparative evaluation of the stability of two different dental implant