Effect of Emergence Angle on Peri-implant Status
EEAPS
The Effect of Implant Prosthesis Emergence Angle on Peri-Implant Health and Disease
1 other identifier
observational
192
1 country
1
Brief Summary
The study was conducted at the Division of Periodontology, Bolu Abant İzzet Baysal University Faculty of Dentistry. Participants were systemically healthy individuals aged 18 to 70 who had received dental implant prostheses within the past five years and had high-quality panoramic radiographs. The peri-implant status of the subjects was evaluated using various indices and radiographic analyses in accordance with Chicago's Classification of Periodontal and Peri-Implant Diseases and Conditions. Additionally, measurements of gingival thickness, gingival phenotype, keratinized gingival width, and emergence angle were performed.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for all trials
Started Sep 2024
Shorter than P25 for all trials
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
September 7, 2024
CompletedPrimary Completion
Last participant's last visit for primary outcome
April 30, 2025
CompletedStudy Completion
Last participant's last visit for all outcomes
May 1, 2025
CompletedFirst Submitted
Initial submission to the registry
November 18, 2025
CompletedFirst Posted
Study publicly available on registry
December 22, 2025
CompletedDecember 22, 2025
December 1, 2025
8 months
November 18, 2025
December 8, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Emergence angle
EA was determined by measuring the angle formed between the long axis of the implant and a tangent line drawn to the restoration. A line was initially drawn along the long axis of the implant at its outside collar. Subsequently, a second line, tangent to the restoration, was drawn from the platform. The angle at which the junction occurred was recorded as the EA .
Baseline
Secondary Outcomes (8)
periodontal pocket depth
Baseline
bleeding on probing
Baseline
plaque index
Baseline
gingival index
Baseline
clinical attachment level
Baseline
- +3 more secondary outcomes
Study Arms (3)
Peri-implantitis
Peri-implantitis patients are those who have developed inflammation around a dental implant, leading to the loss of supporting bone and the presence of pockets of infection.
Peri-implant mucositis
Peri-implant mucositis refers to a reversible inflammatory condition affecting the soft tissues surrounding a dental implant, characterized by redness, swelling, and bleeding on probing, without any bone loss.
Peri-implant health
Peri-implant health refers to the condition where the tissues surrounding a dental implant are free from inflammation, with no signs of redness, swelling, bleeding on probing, or bone loss, indicating a stable and healthy implant environment.
Interventions
The emergence angles of the implants were measured on panoramic radiographs.
Eligibility Criteria
Patients who have received implants
You may qualify if:
- Systemically healthy individuals or individuals with controlled medical conditions
- Availability of high-quality panoramic radiographs that could be accurately measured after fabrication of the dental implant prosthesis
- Implants placed no more than five years prior to evaluation
You may not qualify if:
- Individuals with uncontrolled systemic diseases
- Presence of habitual bruxism
- Current smokers
- Pregnant or breastfeeding individuals
- Use of anti-inflammatory or immunosuppressive medications affecting the mucosa or bone
- Individuals who had received treatment for peri-implant disease after implant placement
- Development of peri-implantitis due to residual cement or prosthesis design, or improperly positioned implants
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Bolu Abant Izzet Baysal University, Dentistry Faculty
Bolu, 14030, Turkey (Türkiye)
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Tuğba Şahin
Bolu Abant İzzet Baysal University
Study Design
- Study Type
- observational
- Observational Model
- CASE CONTROL
- Time Perspective
- CROSS SECTIONAL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Assistant professor
Study Record Dates
First Submitted
November 18, 2025
First Posted
December 22, 2025
Study Start
September 7, 2024
Primary Completion
April 30, 2025
Study Completion
May 1, 2025
Last Updated
December 22, 2025
Record last verified: 2025-12