Journal article
The positive effect of tenting screws for primary horizontal guided bone regeneration: A retrospective study based on cone-beam computed tomography data.
- César Neto JB Division of Periodontology, School of Dentistry, University of São Paulo, São Paulo, Brazil.
- Cavalcanti MC Division of Periodontology, School of Dentistry, University of São Paulo, São Paulo, Brazil.
- Sapata VM Division of Periodontology, School of Dentistry, University of São Paulo, São Paulo, Brazil.
- Pannuti CM Division of Periodontology, School of Dentistry, University of São Paulo, São Paulo, Brazil.
- Hämmerle CHF Clinic of Reconstructive Dentistry, Center of Dental Medicine, University of Zurich, Zurich, Switzerland.
- Naenni N Clinic of Reconstructive Dentistry, Center of Dental Medicine, University of Zurich, Zurich, Switzerland.
- Thoma DS Clinic of Reconstructive Dentistry, Center of Dental Medicine, University of Zurich, Zurich, Switzerland.
- Romito GA Division of Periodontology, School of Dentistry, University of São Paulo, São Paulo, Brazil.
- 2020-06-21
Published in:
- Clinical oral implants research. - 2020
English
OBJECTIVES
To radiographically evaluate the effect of the adjunctive use of tenting screws (TS) for primary horizontal guided bone regeneration (GBR).
MATERIALS & METHODS
Twenty-eight patients in need of staged bone augmentation were consecutively treated in a private practice. A xenogenic particulate bone substitute material (DBBM) and a resorbable collagen membrane were used in all patients. Subjects were divided into two groups: control (conventional GBR; n = 22) and test (tenting screws in conjunction with GBR - TS; n = 22). CBCT images were obtained before augmentation and after 6-8 months. CBCTs were superimposed, and linear horizontal measurements were performed. Alveolar ridge width (RW) and ridge width change (RWchange) were assessed at 1, 3, 5, and 7 mm below the bone crest.
RESULTS
Forty-four sites in 28 patients were evaluated. No differences between the groups were detected for RW at baseline (TS: 5.87 ± 2.41; control: 5.36 ± 1.65). Regarding RWchange, TS promoted an additional effect at 1 and 3 mm below the crest compared to control (p < .05; RWchange-1 TS: 3.72 ± 2.46; control: 1.25 ± 3.05; RWchange-3 TS: 3.98 ± 2.53; control: 2.50 ± 2.02). The final RW was greater in group TS compared to the control group at the 1, 3, and 5 mm level (p < .05).
CONCLUSIONS
The use of tenting screws exerted a positive effect on staged GBR with a greater final RW at the 3 mm level. In addition, GBR in conjunction with TS was able to provide consistent bone augmentation at lingual/palatal sites.
To radiographically evaluate the effect of the adjunctive use of tenting screws (TS) for primary horizontal guided bone regeneration (GBR).
MATERIALS & METHODS
Twenty-eight patients in need of staged bone augmentation were consecutively treated in a private practice. A xenogenic particulate bone substitute material (DBBM) and a resorbable collagen membrane were used in all patients. Subjects were divided into two groups: control (conventional GBR; n = 22) and test (tenting screws in conjunction with GBR - TS; n = 22). CBCT images were obtained before augmentation and after 6-8 months. CBCTs were superimposed, and linear horizontal measurements were performed. Alveolar ridge width (RW) and ridge width change (RWchange) were assessed at 1, 3, 5, and 7 mm below the bone crest.
RESULTS
Forty-four sites in 28 patients were evaluated. No differences between the groups were detected for RW at baseline (TS: 5.87 ± 2.41; control: 5.36 ± 1.65). Regarding RWchange, TS promoted an additional effect at 1 and 3 mm below the crest compared to control (p < .05; RWchange-1 TS: 3.72 ± 2.46; control: 1.25 ± 3.05; RWchange-3 TS: 3.98 ± 2.53; control: 2.50 ± 2.02). The final RW was greater in group TS compared to the control group at the 1, 3, and 5 mm level (p < .05).
CONCLUSIONS
The use of tenting screws exerted a positive effect on staged GBR with a greater final RW at the 3 mm level. In addition, GBR in conjunction with TS was able to provide consistent bone augmentation at lingual/palatal sites.
- Language
-
- English
- Open access status
- closed
- Identifiers
-
- DOI 10.1111/clr.13630
- PMID 32562322
- Persistent URL
- https://sonar.ch/global/documents/67359
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