Cantilever restorations on short and longer dental implants: a non-inferiority randomized controlled clinical trial

Cantilever restorations on short and longer dental implants: a non-inferiority randomized controlled clinical trial - Short vs Long with a cantilever

Status

Recruiting

Phases

Phase 4

Study type

Interventional

Source

DRKS

Registry ID

DRKS00031087

Enrollment

Registered

2023-01-20

Start date

2023-04-04

Completion date

Unknown

Last updated

2026-02-02

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

Conditions

Missing two adjacent posterior teeth

Interventions

Group 1: 6mm tissue level implant (TLX) with a FDP with a cantilever (short-C) Group 2: 10mm tissue level implant (TLX) with a FDP with a cantilever (long-C)

Eligibility

Sex/Gender

All

Age

18 Years to No maximum

Inclusion criteria

Inclusion criteria: Partially edentulous patients with two adjacent missing teeth in the maxilla or mandible in position of premolars and molars At least 12mm of vertical bone height in the mandible allowing the placement of a 10mm implant (2mm safety distance to inferior alveolar nerve) At least 10mm of vertical bone height in the maxilla Periodontally healthy individuals (Bleeding on probing <20%; Plaque index <20%) Capability to comply with the study procedures Signed Informed Consent Form

Exclusion criteria

Exclusion criteria: Pregnant or lactating women Skeletal immaturity Known or suspected non-compliance, drug or alcohol abuse Smokers (>10 cigarettes/day) Currently taking drugs that influence bone metabolism History of malignancy, radiotherapy or chemotherapy for malignancy in the past 5 yearGeneral medical contraindication for implant surgery

Design outcomes

Primary

Measure	Time frame
The primary outcome will be the frequency of technical complications at one year post loading.	—

Secondary

Measure	Time frame
Clinical, biological outcomes (probing depth (PD), bleeding on probing (BOP), plaque index (PI), and radiographic evaluations (marginal bone levels (MBL), together with patient-reported outcome measures (PROMs), OHIP, profilometric measurements, crown to implant ratio, interocclusal relationship, costs, number of interventions to resolve complication will be evaluated at the different time-points. Technical complications will be assessed using modified United States Public Health Service (USPHS) criteria.	—

Measure

Time frame

Clinical, biological outcomes (probing depth (PD), bleeding on probing (BOP), plaque index (PI), and radiographic evaluations (marginal bone levels (MBL), together with patient-reported outcome measures (PROMs), OHIP, profilometric measurements, crown to implant ratio, interocclusal relationship, costs, number of interventions to resolve complication will be evaluated at the different time-points. Technical complications will be assessed using modified United States Public Health Service (USPHS) criteria.

—

Countries

Switzerland

Contacts

Public ContactDaniel Thoma

University of Zu¨rich Center of Dental Medicine Clinic of Reconstructive Dentistry

Daniel.Thoma@zzm.uzh.ch+41 44 634 04 04

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Feb 7, 2026