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Which type of implant placement provides better clinical outcome in patients?

Clinical performance, patient and operator reported outcome measures of axially placed and tilted implants used for fixed rehabilitation of the edentulous maxilla: A pilot study.

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
CTRI
Registry ID
CTRI/2022/03/041078
Enrollment
40
Registered
2022-03-14
Start date
Unknown
Completion date
Unknown
Last updated
2026-03-30

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Interventions

Intervention1: CAD-CAM fabricated provisional prosthesis: Duration: 3 months. CAD-CAM fabricated provisional prostheses facilitates prosthesis delivery in immediate functional loading protocols. The p

Sponsors

International Team For Implantology
Lead Sponsor

Eligibility

Inclusion criteria

Inclusion criteria: Patients should be of minimum 18 years to be included in the study. - Patient with edentulous maxilla - Presence of natural teeth or dentures in the mandibular arch - Presence of adequate primary stability during implant placement. - Adequate bone volume to place at least 4 implants with a standard diameter & at least 6 mm in length. - Presence of at least 6mm (height) of bone in the distal most prosthetic position (in the region of 2nd premolar or 1st molar). - Presence of at least 8 mm (height) and 6 mm (width) of bone in the anterior region to place an implant of a regular diameter with a minimum length of 8 mm. - Presence of healed maxillary edentulous ridge (at least 3 months post extraction).

Exclusion criteria

Exclusion criteria: Self reported history of bruxism - Uncontrolled diabetes (HbA1c >7.5 mg/dl) - History of irradiation in the head and neck region - Inability to comply with annual implant maintenance follow up - Ridge profile not allowing the placement of a fixed prostheses. - Presence of systemic disease that contraindicates implant placement. - Pregnant or lactating women

Design outcomes

Primary

MeasureTime frame
The primary outcome of the study is the evaluation of prosthetic complications of CAD-CAM fabricated and denture-conversion prosthesis using modified USPHS scores at 3 months of function.Timepoint: 3 months

Secondary

MeasureTime frame
Survival rates: To evaluate implant survival rates of tilted and axially placed implants at 1 year, 3 years and 5 years . VAS Scores, OHIP-14 scores and Operator based preferences.Timepoint: 1 year, 3 years and 5 years;Prosthetic Level: Incidence of chipping of the final prostheses, fracture of abutment/ crown or frame work, fracture of veneering ceramic, occlusal roughness, loss of retention (loosening of crown or abutment screw) and the contour of restoration will be evaluated at 4 weeks after insertion of final prosthesis and at 1 year, 3 years and 5 years after function for final prosthesis using the Modified USPS scores. Timepoint: 4 weeks, 1 years, 3 years and 5 years;Implant Level: Fracture of screw and implant will be evaluated at 4 weeks after insertion of final prosthesis (BL1) and at 1 year, 3 years and 5 years. Timepoint: 4 weeks, 1 years, 3 years and 5 years;PROMS: - VAS scores based questionnaires about maintenance of oral hygiene, ability to speak, comfort and aesthetics will be evaluated at insertion of interim prosthesis ( Visit 3; prior to implant insertion,) at baseline and 3 months after use of provisional prostheses. Similarly VAS scores will be evaluated at the time of insertion of final prostheses (BL1) and at 1, 3 and 5 years after function. - OHIP-14 will be evaluated at insertion of interim prosthesis (Visit 3; prior to implant insertion, at baseline and 3 months after use of provisional prostheses. Similarly VAS scores will be evaluated at the time of insertion of final prostheses and at 1, 3 and 5 years after function. Timepoint: 1 year, 3 years and 5 years;Operator based preferences: VAS scores based questionnaires for operator based preferences with respect to the ease of surgery and insertion of CAD-CAM fabricated provisional prostheses and denture conversion prostheses will be assessed after the insertion of provisional prostheses. Timepoint: 3 months;Clinical outcomes: The following clinical outcomes will be evalua

Countries

India

Contacts

Public ContactFarha Rizwan

M.A.Rangoonwala College of Dental Sciences and Research Center, Pune

tabrezlakha@gmail.com09766675324

Outcome results

None listed

Source: CTRI (via WHO ICTRP) · Data processed: Apr 4, 2026