Discussion : intraosseous stability and healing period for dental implants (2)
The insertion torque value in this study showed broader (10 to 50 N cm) than the previous publication (Table 2), and the cause of reasons for the difference are as follows: Primary stability may be affected by the bone quantity and bone quality in the treatment area, the micro- and macro-level design of the implant body, and the accuracy of the surgical technique. In this study, the 17 dentists performed implant treatment. The deviation of each insertion torque value was thought by the surgical technique of each dentist. In clinical situation, the insertion torque value is considered to indicate various values.
The insertion torque value in this study showed no significant difference between each treatment area. Therefore, all of the implant bodies were considered as one population and that population was classified into three groups by insertion torque value and analyzed. In a recent literature, Anitua et al. reported that the insertion torque values were 59.29 ± 7.27 N cm at type I bone, 56.51 ± 1.62 N cm at type II bone, 46.40 ± 1.60 N cm at type III bone, 34.84 ± 2.38 N cm at type IV bone, and 5 N cm at type V bone. Since the average value of insertion torque in this study was 32.7 ± 9.2 N cm, it was inferred that this study evaluated implant treatment for relatively soft bone quality.
The intraosseous stability of the healing period was evaluated by mobility measurement and/or resonance frequency analysis. A resonance frequency analysis has been reported as a non-invasive procedure that is useful for evaluating osseointegration. The results of the resonance frequency analysis were represented in the present study as the ISQ.
An ISQ is reportedly affected by the condition of the bone surrounding the implant, such as the range of contact between implant body and bone.
Serial posts:
- Prospective multicenter non-randomized controlled study on intraosseous stability and healing period for dental implants in the posterior region
- Background : Prospective multicenter non-randomized controlled study on intraosseous stability and healing period for dental implants
- Methods : Prospective multicenter non-randomized controlled study on intraosseous stability and healing period for dental implants (1)
- Results : intraosseous stability and healing period for dental implants (1)
- Methods : Prospective multicenter non-randomized controlled study on intraosseous stability and healing period for dental implants (2)
- Results : intraosseous stability and healing period for dental implants (2)
- Discussion : intraosseous stability and healing period for dental implants (1)
- Discussion : intraosseous stability and healing period for dental implants (2)
- Discussion : intraosseous stability and healing period for dental implants (3)
- Discussion : intraosseous stability and healing period for dental implants (4)
- Discussion : intraosseous stability and healing period for dental implants (5)
- Discussion : intraosseous stability and healing period for dental implants (6)
- Figure 1. Genesio® Plus implant with Aanchor surface
- Figure 2. The measurement of the voxel values
- Figure 3. The evaluation of the average ISQ. Time-lapse migration of average ISQ. Average ISQ of all specimens increased in a time-dependent manner (results indicated by a line). A significant difference was observed by 6 weeks after surgery
- Figure 4. The classification of the insertion torque. All specimens classified into three groups according to insertion torque. Criteria for the classification are shown in the figure and in the “Methods” section
- Figure 5. The comparison of ISQ values by the insertion torque
- Figure 6. The relationship between ISQ and insertion torque
- Figure 7. The average voxel value between the maxilla and mandible
- Figure 8. The relationship between average voxel value and insertion torque
- Figure 9. The comparison of two groups at average voxel values for each part
- Table 1 Treatment area and size of implant body
- Table 2 Result of IT and ISQ