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A randomized controlled trial to compare the survival and success rate of implant supported, screw retained hybridcrowns on zirconia and titanium implants

A randomized controlled trial to compare the survival and success rate of implant supported, screw retained hybridcrowns on zirconia and titanium implants - Hybrid-abutment crown on zirconia vs. titanium implants

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
DRKS
Registry ID
DRKS00014866
Enrollment
60
Registered
2018-06-15
Start date
2018-06-21
Completion date
Unknown
Last updated
2026-01-12

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

Conditions

gap of a missing teeth K08.1

Interventions

Group 1: two-piece hybrid-abutment crown with titanium core on titanium implant (Camlog Screw Line, Camlog)
control group Group 2: two-piece hybrid-abutment crown with PEKK core on zirconia implant (Ceralog Hexalob, Camlog)

Sponsors

Charité-Universitätsmedizin Berlin CC03 – Abteilung für zahnärztliche Prothetik, Alterszahnmedizin und Funktionslehre
Lead Sponsor

Eligibility

Sex/Gender
All
Age
20 Years to No maximum

Inclusion criteria

Inclusion criteria: - the Patient will benefit from Implantation - a signed consent form - the Patient have to be 20 years old or more - the gap of the missing tooth in the posterior Region must exceed 7.5 mm - the minuim vertical dimension of the bone is 10.0 mm - with sufficient antagonism - neighboring implants must be loaded under clinical function for at least 1 year - a period of at least 4 month after tooth extraction - no need of bone augmentation with a minimum of 1 mm of circular bone volume - only women with safe methods of contraception

Exclusion criteria

Exclusion criteria: - no willingness to sign the consent form - smokers with more than 10 cigarettes per day - Special systemic disease such as poorly regulated diabetes, endocrine diseases, heart diseases, poor immun System - drugs taking to influence the bone metabolism such as bisphosphonats, kortikosteroide - coagulation disorder - pregnancy - hypersensitivity to implant materials - bruxism - periodontitis - insufficient oral Hygiene - radiation - paticipant of further studies - insuffiecient bone level

Design outcomes

Primary

MeasureTime frame
For the primary endpoint, data should be censored for the survival time and success rate time (no technical or biological complications) of the final restoration. The results are binary coded: after 5 years of observation the restoration has survived or not.

Secondary

MeasureTime frame
technical complications: screw lossening, abutment or crown fracture, chipping and abrasion within the lithiumdisilikat ceramic biological complications: bone losss and soft tissue loss around the implants and other periimplant parameters: Plaque index, BOP +, increasing pocket depth, recession, a-MMP 8 values. Furthermore esthetic parameters (the Pink and White esthetic score) were evaluated. The follow time with data acquisition will be once a year.

Countries

Germany

Contacts

Public ContactGuido Sterzenbach

Dentalzentrum Pankow, MVZ Gabàtyplatz GmbH

guido.sterzenbach@charite.de030499198599

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Feb 4, 2026