INFLUENCE OF ABUTMENT DESIGN ON CLINICAL OUTCOME OF IMPLANT-SUPPORTED MONOLITHIC ZIRCONIA CROWNS
Hammad, A., Ahmed, W., Al-Zordk, W., Ghazy, M., Attia, A. (2023). INFLUENCE OF ABUTMENT DESIGN ON CLINICAL OUTCOME OF IMPLANT-SUPPORTED MONOLITHIC ZIRCONIA CROWNS. EKB Journal Management System, 69(1), 665-673. doi: 10.21608/edj.2023.174532.2344
Amira Hammad; Wael Ahmed; Walid Al-Zordk; Mohamed Ghazy; Ahmed Attia. "INFLUENCE OF ABUTMENT DESIGN ON CLINICAL OUTCOME OF IMPLANT-SUPPORTED MONOLITHIC ZIRCONIA CROWNS". EKB Journal Management System, 69, 1, 2023, 665-673. doi: 10.21608/edj.2023.174532.2344
Hammad, A., Ahmed, W., Al-Zordk, W., Ghazy, M., Attia, A. (2023). 'INFLUENCE OF ABUTMENT DESIGN ON CLINICAL OUTCOME OF IMPLANT-SUPPORTED MONOLITHIC ZIRCONIA CROWNS', EKB Journal Management System, 69(1), pp. 665-673. doi: 10.21608/edj.2023.174532.2344
Hammad, A., Ahmed, W., Al-Zordk, W., Ghazy, M., Attia, A. INFLUENCE OF ABUTMENT DESIGN ON CLINICAL OUTCOME OF IMPLANT-SUPPORTED MONOLITHIC ZIRCONIA CROWNS. EKB Journal Management System, 2023; 69(1): 665-673. doi: 10.21608/edj.2023.174532.2344

INFLUENCE OF ABUTMENT DESIGN ON CLINICAL OUTCOME OF IMPLANT-SUPPORTED MONOLITHIC ZIRCONIA CROWNS

Egyptian Dental Journal
Article 22, Volume 69, Issue 1 - Serial Number 4, January 2023, Page 665-673  XML PDF (532.85 K)
Document Type: Original Article
DOI: 10.21608/edj.2023.174532.2344
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Authors
Amira Hammad email orcid 1; Wael Ahmedorcid 2; Walid Al-Zordkorcid 3; Mohamed Ghazyorcid 4; Ahmed Attiaorcid 4
1Assistant Professor, Prosthodontics Department, Faculty of Dentistry, Kafrelsheikh University, Kafrelsheikh, Egypt
2Associate Professor, Oral and Maxillofacial Surgery Department, Faculty of Dentistry, Mansoura University, Mansoura, Egypt
3Associate Professor, Fixed Prosthodontics Department, Faculty of Dentistry, Mansoura University, Mansoura, Egypt
4Professor, Fixed Prosthodontics Department, Faculty of Dentistry, Mansoura University, Egypt
Abstract
Statement of problem: Longer-term clinical trials with success data are required to validate the current design options of Ti base as viable abutments.
Objective: The aim of this clinical research was to investigate the influence of abutment designs on the clinical outcome of screw- and cement-retained, implant-supported monolithic zirconia crowns.
Material and methods: A total of 28 patients with missing 30 single maxillary premolar areas were implanted (4.1x12mm), and random classified into 3 equal groups (n =10): Group (A) (VC): patients receiving hybrid Ti base abutments (Variobase, Straumann, Switzerland) with cement-retained crowns, Group (B) (VS): patients receiving hybrid Ti base abutments (Variobase) with screw-retained crowns, Group (C) (DS): patients receiving non-segmented screw-retained crown (cemented onto Dess Ti Base). The monolithic zirconia crowns were CAD/CAM fabricated, cemented, and evaluated at baseline, 3, 6, 12 and 18 months clinically and radiographically. All data were collected and statistically analyzed.
Results: All 30 implants remained stable and reached osseointegration (100% cumulative success rate ⁅CSR⁆). The highest mean average crestal bone level (BL) measured 1.23+0.72mm (median: 1.40mm, range: 0.00-2.25mm) (P=0.09 NS) in group (C) (DS), and the least mean BL measured 1.00+0.55mm (median: 1.10mm, range: 0.00-2.00mm) and (median: 1.00mm, range: 0.10-1.90mm) (P=0.83 NS) and (P=0.52 NS) in the groups (B and A) (VS and VC) respectively.
Conclusions: Under the conditions of this study, using a prefabricated (Variobase or Dess) Ti base as an abutment for an implant-supported zirconia crown is an alternative procedure for FPDs. It promotes healthy and stable hard and soft tissues.
Keywords
Variobase; Ti base; abutment design; clinical evaluation; monolithic zirconia
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