About this trial
To compare biological, technical, radiographic, and patient-reported outcomes of two types of monolithic zirconia crowns screw-retained to implant.
To assess whether the new form of multilayered zirconia crowns will show similar survival and success rate to conventional monolithic Zirconia screw-retained to implants in molar and premolar regions.
First Null Hypothesis: Multilayered monolithic zirconia crowns would have similar survival, success rate compared to conventional monolithic zirconia implant supported crowns.
Second Null hypothesis: There would be no difference in clinical and patients related outcomes between multilayered and conventional monolithic zirconia implant supported crowns.
Eligibility criteria
Qualifiers
Partially edentulous area with suitable restorative space more than 5.5 mm
At least 18 years of age
Opposing natural teeth or fixed restorations supported by teeth or implants.
Generally good health (ASA I, ASA II)
Disqualifiers
Inability to provide consent.
Temporomandibular disorders
Smoking of more than 10 cigarettes per day
Untreated caries or periodontal disease of remaining dentition
Trial design
Treatments tested in this trial
- Graded Zirconia Crown
- Conventional Zirconia Crown