The Effect of Implant Design and Bone Quality on Insertion Torque, Resonance Frequency Analysis, and Insertion Energy During Implant Placement in Low or Low- to Medium-Density Bone

Wang, Tong-Mei; Lee, Ming‐Shu; Wang, Juo-Song; Lin, Li‐Deh

doi:10.11607/ijp.4063

Cited by 40 publications

(55 citation statements)

References 20 publications

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“…Our data support that the highest insertion torque mean (48.9 N.cm) was achieved with the group submitted to conventional drilling in the artificial bone with higher density (CD 1 ); while, the group submitted to conventional drilling with lower bone density (CD 2 ) presented the lowest insertion torque mean (11.7 N.cm). Similar results were found in other studies 4,19,[23][24][25] where a positive relation between implant stability and artificial bone block density was noticed. Besides, Magno Filho et al 23 evaluating the insertion torque and resonance frequency analysis of implants placed in maxilla and mandible with different bone densities, observed higher implant insertion torque and resonance frequency analysis on most dense bone, elucidating a positive correlation between these factors.…”

Section: Discussionsupporting

confidence: 92%

“…Besides, they present the advantage of high structural homogeneity in comparison to the other alternatives (human cadaveric bone or animal bones). Thus, these artificial bone blocks have already been used successfully in previous studies 4,[15][16][17][18][19][20] . Concerning the evaluation method to assess the implant primary stability, several noninvasive techniques have been tested in scientific literature.…”

Section: Discussionmentioning

confidence: 99%

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Combining the effects of undersized drilling and bone density on implant insertion torque

Camargo

Nunes

Spazzin³

et al. 2017

Braz. J. Oral Sci.

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Aim: This study evaluated the influence of surgical undersized drilling on insertion torque of an implant system at low bone density. Methods: Implant site preparations were made in two polyurethane foam blocks with different densities, where two preparation techniques were considered: Control group (C): conventional drilling, following the manufacturer's instructions; and Group (E): undersized drilling, experimental technique using a final surgical drill with reduced diameter. The artificial bone blocks were selected based on density: D 1 (0.64 g/cm 3 ) and D 2 (0.32 g/cm 3 ). Three groups were considered according to the preparation technique and bone density used (n=10): CD 1 -conventional drilling technique in artificial bone with higher density; CD 2 -conventional drilling technique in artificial bone with lower density; and ED 2 -undersized drilling in artificial bone with lower density. Externalhexagon implants (11 × 4 mm) were inserted and the insertion torque values were measured using a digital torque-meter. Data were submitted to one-way ANOVA followed by Tukey's test (α=0.05). Results: The results showed significant statistical differences between groups (p<0.001), where the highest insertion torque was found for the Group CD 1 (48.9 Ncm) followed by Group ED 2 (22.6 Ncm) and Group CD 2 (11.7 Ncm). Conclusions: The undersized drilling technique for implant site preparation leads to increased insertion torque on low bone density.

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Section: Discussionsupporting

confidence: 92%

Section: Discussionmentioning

confidence: 99%

Combining the effects of undersized drilling and bone density on implant insertion torque

Camargo

Nunes

Spazzin³

et al. 2017

Braz. J. Oral Sci.

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show abstract

“…Although the alveolar septum of the B‐type extraction socket was partially or completely destroyed, the implant could be supported vertically and horizontally by enough alveolar bone. Cortical bone has a stronger retention effect on implants than cancellous bone . The authors used concave osteotome to cause maxillary sinus floor fracture and establish the cortical bone retention around the implant root.…”

Section: Discussionmentioning

confidence: 99%

Immediate implant placement combined with maxillary sinus floor elevation utilizing the transalveolar approach and nonsubmerged healing for failing teeth in the maxillary molar area: A randomized controlled trial clinical study with one‐year follow‐up

Liu

Wang

et al. 2019

Clin Implant Dent Rel Res

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Background In previous studies, immediate implant placement in molar sites has been widely applied. Purpose To study the clinical effect and feasibility of immediate implant placement combined with maxillary sinus floor elevation utilizing the transalveolar approach and nonsubmerged healing for failing teeth in the maxillary molar area. Material and Methods Patients who required implantation surgry to replace a failing tooth in the maxilla molar region were selected. Patients were randomized into two groups: immediate implant placement combined with maxillary sinus floor elevation utilizing the transalveolar approach and nonsubmerged healing (test group) or delayed implant placement combined with maxillary sinus floor elevation utilizing the transalveolar approach and nonsubmerged healing (control group). The outcome criteria were the success rates of implants, Cone Beam Computer Tomography (CBCT) data and results of the subjective satisfaction survey performed with a visual analog scale (VAS). Results All implants had good initial stability after implantation. The survival rate of implants was 100% at 1‐year follow‐up. At the time of permanent restoration, the differences in average horizontal shrinkage of alveolar bone (W1) on the buccal side between the test group (0.65 ± 0.12 mm) and the control group (1.23 ± 0.32 mm) were statistically significant (P < .0001); however, no statistically significant difference (P = .515) was observed on the palatal side (0.3 ± 0.10 mm vs 0.28 ± 0.08 mm). The difference in vertical resorption of alveolar bone (H1) on the buccal side between the test group (0.60 ± 0.18 mm) and the control group (1.53 ± 0.19 mm) was statistically significant (P < .0001), but no statistically significant difference (P = .190) in the reduction of palatal alveolar bone (0.24 ± 0.12 mm vs 0.29 ± 0.13 mm) was observed. After 1‐year loading, no statistically significant difference (P > .05) in vertical or horizontal changes (W2, H2) were identified in the test group or control group. Patient satisfaction in both groups was similar (8.36 ± 1.01 vs 8.14 ± 1.35), and the difference between groups was not statistically significant (P = .638). Conclusion Immediate implant placement combined with maxillary sinus floor elevation utilizing the transalveolar approach and nonsubmerged healing is feasible for the maxillary molar area, and the clinical effect is satisfactory.

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“…Optimal implant stability is more difficult to achieve in low‐density bone, such as that of the posterior maxilla. While modification of implant site preparation using smaller drills or bone‐condensing techniques can enhance primary stability in posterior maxillary sites, implant design also seems to have a crucial effect on improving stability in soft bone densities . Implant engineering strategies to increase primary stability include self‐tapping design and tapered morphology .…”

mentioning

confidence: 99%

Insertion Torque of Variable‐Thread Tapered Implants in the Posterior Maxilla: A Clinical Study

Abi-Aad

Daher

Baba

et al. 2018

Journal of Prosthodontics

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The Effect of Implant Design and Bone Quality on Insertion Torque, Resonance Frequency Analysis, and Insertion Energy During Implant Placement in Low or Low- to Medium-Density Bone

Cited by 40 publications

References 20 publications

Combining the effects of undersized drilling and bone density on implant insertion torque

Combining the effects of undersized drilling and bone density on implant insertion torque

Immediate implant placement combined with maxillary sinus floor elevation utilizing the transalveolar approach and nonsubmerged healing for failing teeth in the maxillary molar area: A randomized controlled trial clinical study with one‐year follow‐up

Insertion Torque of Variable‐Thread Tapered Implants in the Posterior Maxilla: A Clinical Study

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