Effect of emergence angle and cement margin of implant restorations on marginal bone level: A randomized controlled clinical trial

Effect of emergence angle and cement margin of implant restorations on marginal bone level: A randomized controlled clinical trial - emergence profile 30/50

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

DRKS

Registry ID

DRKS00034416

Enrollment

Registered

2024-06-17

Start date

2024-06-18

Completion date

Unknown

Last updated

2025-04-07

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

Conditions

K08.1

Interventions

Group 1: Patients allocated to Arm 1 will receive an implant and after 3 months the crowns will be placed with a 30° crown angle and a custom abutment. The patients will be followed up 1-,3-and 5 yea

Eligibility

Sex/Gender

All

Age

18 Years to No maximum

Inclusion criteria

Inclusion criteria: -Need for reconstructive treatment with a dental implant in the molar area -Periodontally healthy patients - Good oral hygiene -Adequate control of inflammation

Exclusion criteria

Exclusion criteria: - Pregnant or lactating women - Smokers (>10 cigarettes/day) - Currently taking drugs that influence bone metabolism - Use of bisphosphonates in the last 4 years

Design outcomes

Primary

Measure	Time frame
Marginal bone level changes from final restoration to the 1-year follow-up	—

Secondary

Measure	Time frame
Clinical parameters (PCR, PD, mSBI, BOP, KM, REC, Crown height) Horizontal thickness of soft tissue Volumetric changes Biological complications Technical complications	—

Countries

Switzerland

Contacts

Public ContactAnina Zürcher

University of Zürich, Clinic of Reconstructive Dentistry

anina.zuercher@zzm.uzh.ch+41 44 634 04 04

Outcome results

None listed

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