Evaluation of Immediate Implantation and Provisionalization Combined with Guided Bone Regeneration by a Flap Approach in the Maxillary Esthetic Zone: A Retrospective Controlled Study
Abstract
:1. Introduction
2. Material and Methods
2.1. Patient Selection
- Males and females aged 18 years at least
- Single tooth with indications for extraction in the maxillary anterior zone (incisor and canine) with both neighboring teeth present
- Presence of a vertical defect less than 4 mm on the labial bone around the neck of the inserted implant
- At least 4 mm apical bone allowing implantation with the minimum primary stability of 35 Ncm
- Acute infection around the implant sites or uncontrolled periodontal diseases
- Any systemic contraindication to the implantation
- Psychiatric problems, alcohol, tobacco (>20 cigarettes per day) or drug abuse
- Pregnancy or lactation
- Insufficient oral hygiene, occlusal instability or severe bruxism
- Unwillingness for follow-up examination
2.2. Surgical Procedures
2.3. Labial Bone Measurements
2.4. Labial Contour Measurements
2.5. Biological Complications
2.6. Statistical Analysis
3. Results
3.1. Details of the Included Patients
3.2. Thickness Change of Labial Bone Tissues Based on CBCT Scan
3.3. Thickness Change of Labial Contour Based on Intraoral Scanner
3.4. Biological Complications
4. Discussion
5. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Group | No. Patients (Ratio) | Sex | Age | Implant Sites | |||||
---|---|---|---|---|---|---|---|---|---|
Male (Ratio) | Female (Ratio) | Mean ± SD | Range | 11/21 | 12/22 | 13/23 | Total | ||
Total Patients | 40 (-) | 17 (43%) | 23 (57%) | 39.80 ± 10.72 | 21–62 | 21 | 10 | 9 | 40 |
Group A (immediate provisionalization) | 20 (50%) | 6 (30%) | 14 (70%) | 39.35 ± 13.11 | 21–62 | 12 | 5 | 3 | 20 |
Group B (delayed provisionalization) | 20 (50%) | 11 (55%) | 9 (45%) | 40.20 ± 8.33 | 27–53 | 9 | 5 | 6 | 20 |
Items | Groups | T1 Mean ± SD | p Value | T3-T1 Mean ± SD | p Value |
---|---|---|---|---|---|
B0 | Group A | 3.93 ± 0.713 | 0.16 | 0.90 ± 0.68 | 0.909 |
Group B | 3.56 ± 0.90 | −0.87 ± 0.73 | |||
B1 | Group A | 4.00 ± 0.86 | 0.212 | −0.80 ± 0.64 | 0.799 |
Group B | 3.76 ± 0.86 | −0.86 ± 0.72 | |||
B2 | Group A | 4.00 ± 0.86 | 0.479 | −0.71 ± 0.84 | 0.875 |
Group B | 3.79 ± 0.97 | −0.75 ± 0.72 | |||
B3 | Group A | 3.62 ± 0.97 | 0.529 | −0.52 ± 0.84 | 0.817 |
Group B | 3.44 ± 0.72 | −0.59 ± 0.82 | |||
B4 | Group A | 2.89 ± 1.14 | 0.599 | −0.53 ± 0.57 | 0.640 |
Group B | 2.73 ± 0.67 | −0.63 ± 0.71 |
Items | Groups | T0 Mean ± SD | p Value | T2-T0 Mean ± SD | p Value | T3-T0 Mean ± SD | p Value |
---|---|---|---|---|---|---|---|
S2 | Group A | 2.67 ± 0.78 | 0.699 | −0.12 ± 0.71 | 0.035 * | −0.13 ± 0.98 | 0.037 * |
Group B | 2.76 ± 0.68 | −0.59 ± 0.64 | −0.65 ± 0.40 | ||||
S1 | Group A | 2.88 ± 0.79 | 0.835 | −0.11 ± 0.77 | 0.047 * | −0.11 ± 0.47 | 0.011 * |
Group B | 2.93 ± 0.81 | −0.56 ± 0.58 | −0.50 ± 0.43 | ||||
S0 | Group A | 2.61 ± 0.56 | 0.982 | −0.11 ± 0.61 | 0.665 | −0.10 ± 0.48 | 0.121 |
Group B | 2.61 ± 0.53 | −0.19 ± 0.51 | −0.33 ± 0.41 | ||||
S3 | Group A | 2.14 ± 0.11 | 0.508 | −0.09 ± 0.55 | 0.803 | −0.14 ± 0.52 | 0.957 |
Group B | 2.11 ± 0.08 | −0.14 ± 0.59 | −0.15 ± 0.46 | ||||
S4 | Group A | 2.69 ± 1.52 | 0.975 | −0.04 ± 0.81 | 0.826 | −0.06 ± 0.78 | 0.881 |
Group B | 2.68 ± 0.87 | −0.09 ± 0.53 | −0.09 ± 0.47 | ||||
S5 | Group A | 2.93 ± 1.21 | 0.642 | −0.01 ± 0.89 | 0.761 | −0.03 ± 0.89 | 0.814 |
Group B | 2.76 ± 1.06 | −0.08 ± 0.45 | −0.08 ± 0.46 |
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Su, Z.; Chen, Y.; Wang, M.; Mo, A. Evaluation of Immediate Implantation and Provisionalization Combined with Guided Bone Regeneration by a Flap Approach in the Maxillary Esthetic Zone: A Retrospective Controlled Study. Materials 2021, 14, 3874. https://doi.org/10.3390/ma14143874
Su Z, Chen Y, Wang M, Mo A. Evaluation of Immediate Implantation and Provisionalization Combined with Guided Bone Regeneration by a Flap Approach in the Maxillary Esthetic Zone: A Retrospective Controlled Study. Materials. 2021; 14(14):3874. https://doi.org/10.3390/ma14143874
Chicago/Turabian StyleSu, Zhenya, Yuan Chen, Maoxia Wang, and Anchun Mo. 2021. "Evaluation of Immediate Implantation and Provisionalization Combined with Guided Bone Regeneration by a Flap Approach in the Maxillary Esthetic Zone: A Retrospective Controlled Study" Materials 14, no. 14: 3874. https://doi.org/10.3390/ma14143874