Understanding, Modulation and Memorization of Indicators Associated to Peri-implantitis

Understanding, Modulation and Memorization of Indicators Associated to Peri-implantitis: A Randomized Controlled Trial

Communication strategies are encouraged to enhance patients´ understanding of potential events related to implant therapy such as peri-implantitis. Moreover, it is key to provide accurate information to patients receiving dental implants to reduce false expectations and to minimize the alterations concerning satisfaction. Information leaflets based in the "health-belief model" proved efficiency in improving health judgments, decisions and behaviors, in particular when supplemented with visual aids. Hence, it was the purpose of the present study to test the effectiveness of different communication strategies to enhance and modulate the understanding and memorization of risk indicators associated to peri-implantitis.

A prospective randomized controlled three-arm study is being conducted in accordance with the Declaration of Helsinki on human studies. Three groups are defined to test the hypothesis that visual aids improve the understanding, modulation and memorization of peri-implantitis and related indicators as follows:

• Test group1 - Leaflet with visual aid (L-VA): Information concerning etiology, prevalence, risk indicators and preventive measures of peri-implantitis were included (supplementary figure 1). Relevant scientific bibliography supported the statements. Along, pictograms were supplemented to display the prevalence of disease with and without the known indicator.
• Test group2 - Leaflet with visual aid (L-NVA): Information concerning etiology, prevalence, risk indicators and preventive measures of peri-implantitis were included (supplementary figure 2). Relevant scientific bibliography supported the statements. No pictograms were supplemented.
• Control group - No leaflet (NL): Only verbal information was provided to the patient during initial interview.

Patients will be randomly assigned to the tests or control groups according to the last digit of their chart number. As such, patients with records ending 1-4, 4-7 and 8-0 were included in test group1, test group2 and control group, respectively. When reached the total sample size of any of the groups, patients were only recruited for the remaining groups to complete the total sample size. A questionnaire based on the "health-belief model" will be collected from every eligible patient at baseline, 3- and 6-month follow-up

Study Overview

• Status: Completed
• Conditions: Peri-Implantitis
• Intervention / Treatment: Behavioral: Leatlet + visual aid (pictogram); Behavioral: Leaflet + no visual aid (no pictogram)

• Study Type: Interventional
• Enrollment (Actual): 99
• Phase: Not Applicable

Contacts and Locations

Study Locations

• Spain
  • Badajoz, Spain, 06011
    • Centro de Implantologia Cirugia Oral y Maxilofacial

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years to 80 years (Adult, Older Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

The following inclusion criteria were applied: partially or completely edentulous patients aged 18-80 years and rehabilitated with implant-supported, single-crown fixed prostheses or implant-supported overdentures; smokers or non-smokers; absence of infectious disease at the time of implant placement; and absence of systemic disorders or medications known to alter bone metabolism. Subjects were excluded if they were pregnant; presented uncontrolled medical conditions or diseases (i.e., diabetes mellitus with HbA1c level >8); or presented zygomatic or pterygoid implants. Patients with treated peri-implantitis/mucositis were likewise excluded.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Prevention
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: None (Open Label)

Number of Arms

3

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Test group1 - Leaflet with visual aid; Information concerning etiology, prevalence, risk indicators and preventive measures of peri-implantitis were included. Relevant scientific bibliography supported the statements. Along, pictograms were supplemented to display the prevalence of disease with and without the known indicator.	Behavioral: Leatlet + visual aid (pictogram); The questionnaires were collected at baseline (at the end of the initial interview and once the patients assigned within the test groups declared to have read the leaflet) at 3- and 6-month follow-up. The questionnaire included demographic data such as age, gender, civil status, occupation (coded according to the CNO-11(2010), presence of systemic disorder, smoking and number of implants. Moreover, data concerning history of periodontal disease and type of prosthesis were further documented and added to demographics.
Experimental: Test group2 - Leaflet with visual aid (L-NVA); Information concerning etiology, prevalence, risk indicators and preventive measures of peri-implantitis were included. Relevant scientific bibliography supported the statements. No pictograms were supplemented.	Behavioral: Leaflet + no visual aid (no pictogram); The questionnaires were collected at baseline (at the end of the initial interview and once the patients assigned within the test groups declared to have read the leaflet) at 3- and 6-month follow-up. The questionnaire included demographic data such as age, gender, civil status, occupation (coded according to the CNO-11(2010), presence of systemic disorder, smoking and number of implants. Moreover, data concerning history of periodontal disease and type of prosthesis were further documented and added to demographics.
No Intervention: • Control group - No leaflet (NL); Only verbal information was provided to the patient during initial interview.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Understanding	Questionnaire	Baseline
Memorisation	Questionnaire	3 month follow-up
Memorisation	Questionnaire	6 month follow-up

Collaborators and Investigators

• Sponsor: Center of Implantology, Oral and Maxillofacial Surgery, Badajoz, Spain

Publications and helpful links

General Publications

• Monje A, Perez A, Vera-Rodriguez M, Nart J, Catena A, Petrova D. Comprehension and recall of information about factors associated with peri-implantitis: A randomized controlled trial. J Periodontol. 2022 Jan;93(1):89-99. doi: 10.1002/JPER.21-0018. Epub 2021 May 27.

Study record dates

Study Major Dates

• Study Start (Actual): February 10, 2018
• Primary Completion (Actual): June 9, 2021
• Study Completion (Actual): June 9, 2021

Study Registration Dates

• First Submitted: August 29, 2020
• First Submitted That Met QC Criteria: September 2, 2020
• First Posted (Actual): September 10, 2020

Study Record Updates

• Last Update Posted (Actual): September 10, 2021
• Last Update Submitted That Met QC Criteria: September 9, 2021
• Last Verified: September 1, 2021

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Stomatognathic Diseases; Periodontal Diseases; Mouth Diseases; Peri-Implantitis
• Other Study ID Numbers: 18002909-18/9/19

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: Undecided

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No