A randomized controlled study comparing guided bone regeneration with connective tissue graft to re-establish convexity at the buccal aspect of single implants: A one-year CBCT analysis.
J Clin Periodontol
; 45(11): 1375-1387, 2018 11.
Article
in En
| MEDLINE
| ID: mdl-30133718
ABSTRACT
AIM:
To compare guided bone regeneration (GBR) with connective tissue graft (CTG) to re-establish convexity at the buccal aspect of single implants. MATERIALS ANDMETHODS:
Patients with a single tooth gap in the anterior maxilla and horizontal alveolar defect were enrolled in a single-blind randomized controlled trial. Sites had to demonstrate buccopalatal bone dimension of at least 6 mm prior to surgery to ensure complete embedding of an implant without the need for bone augmentation. All received a single implant and were randomly allocated to the control group (GBR) or the test group (CTG). Cross-sectional CBCT images at t0 (before surgery), t1 (2 weeks after surgery) and t2 (1 year after surgery) were used to evaluate the buccal soft tissue profile (BSP). Secondary outcome variables were buccal bone thickness (BB), buccal soft tissue thickness (BST), vertical bone loss (VBL) and clinical parameters.RESULTS:
Twenty-one patients were included per group (control 11 females, mean age 51; test nine females, mean age 48). At t2 , a significant increase in BSP between 0.7 and 1.5 mm was observed in each group (p ≤ 0.010). There was no significant difference between the groups at 1 year (p ≥ 0.126). The increase in BSP in the control group was basically the result of BB gain ranging from 0.69 to 1.15 mm. BSP gain in the test group was the result of an increase in BST ranging from 0.67 to 1.38 mm. VBL did not differ significantly between the groups (p ≥ 0.644). Implants demonstrated healthy clinical conditions with no significant differences between the groups for any of the parameters (p ≥ 0.095).CONCLUSION:
Within the limitations of superimposed CBCT images, GBR and CTG are effective to re-establish convexity at the buccal aspect of single implants in the short term.Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Dental Implants, Single-Tooth
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Spiral Cone-Beam Computed Tomography
Type of study:
Clinical_trials
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Observational_studies
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Prevalence_studies
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Risk_factors_studies
Limits:
Female
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Humans
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Middle aged
Language:
En
Journal:
J Clin Periodontol
Year:
2018
Document type:
Article
Affiliation country:
Belgium
Publication country:
EEUU
/
ESTADOS UNIDOS
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ESTADOS UNIDOS DA AMERICA
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EUA
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UNITED STATES
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UNITED STATES OF AMERICA
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US
/
USA