NCT06881355

Brief Summary

The goal of this study is to determine the effect of bruxism on the success of posterior composite restorations (PCRs) in endodontically treated teeth (ETT). The null hypotheses of present study were as follows: (1) bruxism would not have a significant effect on the success rate of PCRs in ETT; (2) other demographic and clinical variations, such as frequency of coloring agent usage, smoking habits, presence of pulpal pathology, periapical lesion, periodontal condition, antagonist tooth condition, cavity margin level, quality of endodontic treatment, enamel cracks, temporomandibular joint (TMJ) disorders, lateral occlusion scheme, institution where the restoration was performed, number of restored surfaces, and follow-up period, would not have a significant effect on the success rate of PCRs in ETT; and (3) functional, esthetic, and biological clinical success of PCRs of bruxists would not differ from that of non-bruxists. This cross-sectional, case-control study included 40 case patients (bruxists with PCR post-ETT) and 40 controls (non-bruxists). Sociodemographic characteristics and clinical findings were recorded. The PCRs on the relevant teeth were evaluated according to the revised FDI criteria.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
80

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Aug 2024

Shorter than P25 for all trials

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

August 15, 2024

Completed
5 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 1, 2025

Completed
29 days until next milestone

Study Completion

Last participant's last visit for all outcomes

January 30, 2025

Completed
1 month until next milestone

First Submitted

Initial submission to the registry

March 4, 2025

Completed
14 days until next milestone

First Posted

Study publicly available on registry

March 18, 2025

Completed
Last Updated

March 18, 2025

Status Verified

March 1, 2025

Enrollment Period

5 months

First QC Date

March 4, 2025

Last Update Submit

March 11, 2025

Conditions

Keywords

BruxismPosterior composite restorationClinical successEndodontically tretaed tooth

Outcome Measures

Primary Outcomes (1)

  • Rate of Clinical success

    FDI scoring system

    1-5 years-follow up period

Secondary Outcomes (1)

  • % of patients with risk factors

    1-5 years-follow up period

Study Arms (2)

Case group-Bruxists with PCR post-ETT

Participants having previously undergone endodontic treatment and composite restorations on any of their posterior teeth and bruxism were assigned to the case group. The presence of bruxism was determined based on the participant's self-reported statements and intraoral findings.

Diagnostic Test: Bruxism diagnosisDiagnostic Test: Clinical evaluation

Control group-Non-bruxists with PCR post-ETT

Participants without bruxism and with PCR post-ETT were assigned to the control group.

Diagnostic Test: Bruxism diagnosisDiagnostic Test: Clinical evaluation

Interventions

Bruxism diagnosisDIAGNOSTIC_TEST

The presence of bruxism was determined based on the participant's self-reported statements and intraoral findings.

Case group-Bruxists with PCR post-ETTControl group-Non-bruxists with PCR post-ETT
Clinical evaluationDIAGNOSTIC_TEST

The PCRs on the relevant teeth were evaluated according to the revised FDI criteria

Case group-Bruxists with PCR post-ETTControl group-Non-bruxists with PCR post-ETT

Eligibility Criteria

Age18 Years - 40 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)
Sampling MethodProbability Sample
Study Population

In this study, the initial data pool consists of patients who had undergone their first examination and had the necessary radiographs taken routinely. After clinically and radiographically identifying those who had underwent root canal treatment and composite restorations, the eligible participants were included in the study to evaluate their restorations.

You may qualify if:

  • Patients aged 18-40 years, PCRs after endodontic treatment,
  • Restorations up to 5 years,
  • Class 1 and 2 restorations with a maximum of 3 wall loss according to cavity classification and not involving the cusps,
  • Patients with low and moderate caries risk, and those with an occlusion classified as Class 1 Angle.

You may not qualify if:

  • Teeth without antagonists;
  • patients with crossbite; mobile teeth;
  • teeth diagnosed with acute apical/periodontal abscess;
  • presence of severe periodontal disease;
  • presence of systemic diseases;
  • pregnant and breastfeeding women;
  • patients who had amalgam, post, or indirect methods chosen for definitive restoration after endodontic treatment;
  • restorations performed more than 5 years ago;
  • patients aged \<18 or \>40 years;
  • restorations involving the cusps,
  • patients with high caries risk, and non-dental plaque biofilm-induced gingival diseases.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Muğla Sıtkı Koçman University

Menteşe, Muğla, 48000, Turkey (Türkiye)

Location

Related Publications (9)

  • Hickel R, Mesinger S, Opdam N, Loomans B, Frankenberger R, Cadenaro M, Burgess J, Peschke A, Heintze SD, Kuhnisch J. Revised FDI criteria for evaluating direct and indirect dental restorations-recommendations for its clinical use, interpretation, and reporting. Clin Oral Investig. 2023 Jun;27(6):2573-2592. doi: 10.1007/s00784-022-04814-1. Epub 2022 Dec 12.

    PMID: 36504246BACKGROUND
  • van de Sande FH, Opdam NJ, Rodolpho PA, Correa MB, Demarco FF, Cenci MS. Patient risk factors' influence on survival of posterior composites. J Dent Res. 2013 Jul;92(7 Suppl):78S-83S. doi: 10.1177/0022034513484337. Epub 2013 May 20.

    PMID: 23690354BACKGROUND
  • Manfredini D, Winocur E, Guarda-Nardini L, Paesani D, Lobbezoo F. Epidemiology of bruxism in adults: a systematic review of the literature. J Orofac Pain. 2013 Spring;27(2):99-110. doi: 10.11607/jop.921.

    PMID: 23630682BACKGROUND
  • R.R. Moraes, M.S. Cenci, J.R. Moura, F.F. Demarco, B. Loomans, N. Opdam, Clinical performance of resin composite restorations, Curr. Oral Health Rep.9 (2022) 22-31.

    BACKGROUND
  • Hickel R, Manhart J. Longevity of restorations in posterior teeth and reasons for failure. J Adhes Dent. 2001 Spring;3(1):45-64.

    PMID: 11317384BACKGROUND
  • Laske M, Opdam NJM, Bronkhorst EM, Braspenning JCC, Huysmans MCDNJM. Risk Factors for Dental Restoration Survival: A Practice-Based Study. J Dent Res. 2019 Apr;98(4):414-422. doi: 10.1177/0022034519827566. Epub 2019 Feb 20.

    PMID: 30786222BACKGROUND
  • Kramer N, Reinelt C, Frankenberger R. Ten-year Clinical Performance of Posterior Resin Composite Restorations. J Adhes Dent. 2015 Aug;17(5):433-41. doi: 10.3290/j.jad.a35010.

    PMID: 26525008BACKGROUND
  • Koyano K, Tsukiyama Y, Ichiki R, Kuwata T. Assessment of bruxism in the clinic. J Oral Rehabil. 2008 Jul;35(7):495-508. doi: 10.1111/j.1365-2842.2008.01880.x.

    PMID: 18557916BACKGROUND
  • Yilmaz F, Dorterler OC. Effect of Bruxism on the Clinical Success of Posterior Composite Restorations in Endodontically Treated Teeth: A Cross-Sectional, Case-Control Study. J Esthet Restor Dent. 2025 Oct;37(10):2180-2192. doi: 10.1111/jerd.70008. Epub 2025 Jul 27.

MeSH Terms

Conditions

BruxismTooth AttritionFractures, Bone

Interventions

Physical Examination

Condition Hierarchy (Ancestors)

Tooth DiseasesStomatognathic DiseasesHabitsBehaviorTooth WearWounds and Injuries

Intervention Hierarchy (Ancestors)

Diagnostic Techniques and ProceduresDiagnosis

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
CROSS SECTIONAL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Asistant Professor Doctor

Study Record Dates

First Submitted

March 4, 2025

First Posted

March 18, 2025

Study Start

August 15, 2024

Primary Completion

January 1, 2025

Study Completion

January 30, 2025

Last Updated

March 18, 2025

Record last verified: 2025-03

Data Sharing

IPD Sharing
Will share

sociodemographic characteristics and clinical findings

Shared Documents
STUDY PROTOCOL, SAP, ICF

Locations