The Effect of Zirconia and Titanium as Abutment Materials on Peri-Implant Soft and Hard Tissues in Mandibular Implant Supported Over-denture

Document Type : Original Article

Authors

1 Assistant Lecturer at Prosthodontic Department, Faculty of Dental Medicine for Girls, Al-Azhar University, Cairo, Egypt

2 Assistant Professor at Prosthodontic Department, Faculty of Dental Medicine for Girls, Al-Azhar University, Cairo, Egypt

3 Professor at Prosthodontic Department, Faculty of Dental Medicine for Girls, Al-Azhar University, Cairo, Egypt

Abstract

Purpose: To evaluate the effect of zirconia and titanium as abutment materials on
peri-implant bone height changes and pocket depth in mandibular implant supported
over-denture. Subjects and methods: Ten completely edentulous patients were
selected from the Outpatient Clinic of the Faculty of Dental Medicine for Girls,
Al-Azhar University. Two implants were implanted in the inter-foraminal area of
mandibular ridge. Two different abutments were screwed over implants. Right abutment
was constructed of zirconia and left one was constructed of titanium. Construction of
maxillary complete denture and mandibular implant supported over-denture for all
patients was performed. Radiographic and clinical evaluation of implants has been
performed at denture insertion, 6 months, 9 months and 12 months. Results: The
previous study illustrated that titanium abutments had significantly higher values of
bone height changes and pocket depth measurements than zirconia abutments during
follow up period. Conclusion: Zirconia abutments had great superiority over titanium
abutments in preservation of peri-implant hard and soft tissues in mandibular
implant-supported over-denture within the follow up period of this study.
 

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Al-Azhar Dental Journal for Girls
Volume 10, Issue 2
Issue2 April-Restorative Dentistry issue (Removable Prosthodontics, Fixed Prosthodontics, Endodontics, Dental Biomaterials, Operative Dentistry)
April 2023
Pages 335-342

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