Evaluation of Peri-implant Conditions of Orthodontic Mini Implants

Study Title:

Evaluation of Peri-implant Conditions of Orthodontic Mini Implants

Objective:

The primary objective of this observational study is to evaluate the periodontal conditions surrounding orthodontic mini implants placed during orthodontic treatment. Additionally, the study aims to assess the impact of existing periodontal/peri-implant conditions on the stability of the mini implants.

Background:

Orthodontic mini screws/implants are commonly used as temporary anchorage devices to prevent or reduce unwanted tooth movements during orthodontic treatment. For these mini screws to function effectively as anchorage units, they must be resistant to the forces applied and remain stable at the site of placement throughout their use. Stability is classified into two types: primary stability, which is the mechanical locking between the implant and bone immediately after placement, and secondary stability, which results from bone remodeling around the implant over time. Both types of stability are crucial for the success of mini implants.

Several factors influence the stability and success of mini implants, including the patient's age, gender, cortical bone thickness and density, the site of implant placement, mobility of surrounding tissues, implant dimensions, surface characteristics, and the magnitude and duration of applied orthodontic forces. Peri-implantitis, an inflammation around the implant, is a significant risk factor for implant failure and is influenced by oral hygiene and the quality of surrounding soft tissues.

Hypothesis:

The hypothesis of this study is that the incidence of gingival/mucosal inflammation around the peri-implant/mini screw areas is high.

Methodology:

Patient Population:

The study will include patients treated at Altinbas University Dental Hospital's Departments of Periodontology and Orthodontics between March 2021 and March 2023. Patients must have at least one orthodontic mini implant placed and be systemically healthy. Patients with a history of prosthetic treatment or those taking medications that affect periodontal tissues (e.g., Cyclosporine-A, Calcium Channel Blockers, Phenytoin) will be excluded.

Clinical Assessments:

Primary Assessments:

Clinical periodontal/peri-implant measurements for the entire mouth and each mini implant/screw.

Bleeding on probing (yes/no), suppuration (yes/no), mucosal redness (erythema), plaque index (0-3), gingival index (0-3), probing depth (mm), clinical attachment loss (mm), width of keratinized mucosa (mm), peri-implant mucosal thickness (mm), and radiographic evaluation of the distance between the mini implant/screw and roots (mm).

Secondary Assessments:

Stability of the mini implants/screws measured using a torque gauge. Type of orthodontic force applied, method of placement (with or without a stent), surface characteristics, type (self-tapping/self-drilling), dimensions (diameter and length), duration of application, amount of force applied (<250 grams), and type of orthodontic force system (elastic/coil systems).

Statistical Analysis:

The study will utilize descriptive statistical methods to evaluate the collected data. Due to the original nature of the research, a power analysis could not be performed before the study.

Expected Outcomes:

The findings from this study are expected to highlight the importance of soft tissue health and maintenance during the planning, surgical placement, and post-operative phases of mini implant applications in orthodontics. Additionally, the study aims to elucidate the impact of existing oral hygiene on the stability and force continuity of mini implants in similar patient groups, thereby providing insights into the optimal frequency of periodontal maintenance for individuals with mini implant anchorage.

Study Location:

Altinbas University Dental Hospital, Zuhuratbaba Neighbourhood, Incirli St. No:11-A, 34147 Bakırköy, Istanbul, Turkey.

This detailed description provides a comprehensive overview of your study, outlining its objectives, background, methodology, and expected outcomes in a structured and academic manner.

Inclusion criteria

• Participants who have at least one orthodontic mini implant placed for anchorage during orthodontic treatment.
• Systemically healthy individuals.
• Participants without a history of prosthetic treatment.

Exclusion criteria

• Individuals taking medications that can affect periodontal tissues (e.g., Cyclosporine-A, Calcium Channel Blockers, Phenytoin).
• Individuals with a history of prosthetic treatment.
• Individuals without orthodontic mini implants.