Bite Force and Occlusal Force Distribution Following Root Canal Treatment. (B-FORCE RCT)
Changes in Bite Force and Occlusal Force Distribution Following Root Canal Treatment, Restoration, and Over Time: A Prospective Observational Study
Understanding the changes in bite force and occlusal force distribution in ETT is clinically important, as it can directly influence tooth prognosis, guide restorative treatment planning, and impact the long-term survival of the treated tooth. Therefore, this study aims to further explore changes and possible correlation in maximum bite force (MBF), occlusal force distribution and patients' subjective perception of chewing function of endodontically treated teeth after non-surgical root canal treatment, subsequent restoration, and during long-term follow-up, along with comparing to contralateral vital teeth.
Methods: Patients aged 20-60 years who underwent non-surgical root canal treatment at the Graduate Endodontic Clinic, Faculty of Dentistry, Chulalongkorn University, with the following teeth indicated for endodontic treatment. Measurements of maximum bite force (MBF) of ETT and contralateral vital teeth, relative occlusal force (ROF), and questionnaire responses, are performed at the following time points: before NS-RCT, 1 month after completion of NS-RCT (before doing restoration), 3 months after crown restoration, 1, 2 and 4 years after completion of NS-RCT.
Differences in MBF and ROF over time points within subjects and differences in MBF and ROF between ETT and their contralateral vital teeth were statistically analyzed.
Aperçu de l'étude
Statut
Les conditions
Type d'étude
Inscription (Estimé)
Contacts et emplacements
Coordonnées de l'étude
- Nom: Thanomsuk Jearanaiphaisarn
- Numéro de téléphone: 6622188795
- E-mail: thanomsuk.j@chula.ac.th
Lieux d'étude
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Bangkok, Thaïlande, 10330
- Graduate Endodontic Clinic, Faculty of Dentistry, Chulalongkorn university
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Contact:
- Thanomsuk Jearanaiphaisarn
- Numéro de téléphone: 6622188795
- E-mail: thanomsuk.j@chula.ac.th
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Contact:
- Uraiwan Chokechanachaisakul
- Numéro de téléphone: 6622188795
- E-mail: uraiwan.c@chula.ac.th
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Chercheur principal:
- Prom Wongmaneerojn
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Critères de participation
Critère d'éligibilité
Âges éligibles pour étudier
- Adulte
Accepte les volontaires sains
Méthode d'échantillonnage
Population étudiée
La description
Inclusion Criteria:
- Premolars or molars diagnosed with pulp necrosis or previously initiate therapy with normal apical tissues, asymptomatic apical periodontitis, or chronic apical abscess without full coverage restoration.
- Adequate remaining tooth structure for cuspal coverage restoration.
- Presence of adjacent teeth and functional opposing natural teeth.
- No analgesics drug effect at the time of investigation or not have taken analgesics 6 hours ago.
Exclusion Criteria:
- Patients undergoing other dental treatments during the study period that may interfere with occlusion or bite force distribution, such as orthodontic treatment, jaw surgery, or full mouth restoration.
- Received treatments that cause weakness of the jaw and facial muscles, such as botox injections.
- History or symptoms of temporomandibular disorders (TMD)
- Periodontal disease with second- or third-degree mobility
- Teeth presenting crack lines extending into the pulp chamber floor or root canal orifices.
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
Cohortes et interventions
Groupe / Cohorte |
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Endodontic patient
Patients aged 20-60 years undergoing non-surgical root canal treatment and subsequent restoration at the Graduate Endodontic Clinic, Faculty of Dentistry, Chulalongkorn University, with prospective assessment of bite force and occlusal force distribution over time.
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Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
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Maximum bite force
Délai: before NS-RCT, 1 month after completion of NS-RCT (before doing restoration), 3 months after crown restoration, 1, 2 and 4 years after completion of NS-RCT.
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Maximum bite force of the endodontically treated tooth and its contralateral tooth in each patient will be measured using the FlexiForce ELF System and FlexiForce B201 sensor.
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before NS-RCT, 1 month after completion of NS-RCT (before doing restoration), 3 months after crown restoration, 1, 2 and 4 years after completion of NS-RCT.
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Relative occlusal force
Délai: before NS-RCT, 1 month after completion of NS-RCT (before doing restoration), 3 months after crown restoration, 1, 2 and 4 years after completion of NS-RCT.
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Relative Occlusal Force are measured with the T-Scan III system.
A device will be inserted into the mouth of the patients, and they are instructed to bite firmly three times at the maximum cusp intersection position.
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before NS-RCT, 1 month after completion of NS-RCT (before doing restoration), 3 months after crown restoration, 1, 2 and 4 years after completion of NS-RCT.
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Mesures de résultats secondaires
Mesure des résultats |
Description de la mesure |
Délai |
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Patients' subjective perception of chewing function
Délai: before NS-RCT, 1 month after completion of NS-RCT (before doing restoration), 3 months after crown restoration, 1, 2 and 4 years after completion of NS-RCT.
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A questionnaire will be used to assess patients' subjective perceptions of chewing function, including preferred chewing side, frequency of hard food consumption, and parafunctional habits such as bruxism and clenching.
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before NS-RCT, 1 month after completion of NS-RCT (before doing restoration), 3 months after crown restoration, 1, 2 and 4 years after completion of NS-RCT.
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Collaborateurs et enquêteurs
Parrainer
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude (Estimé)
Achèvement primaire (Estimé)
Achèvement de l'étude (Estimé)
Dates d'inscription aux études
Première soumission
Première soumission répondant aux critères de contrôle qualité
Première publication (Réel)
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Réel)
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Plus d'information
Termes liés à cette étude
Mots clés
Termes MeSH pertinents supplémentaires
Autres numéros d'identification d'étude
- HREC-DCU 2025-206
Plan pour les données individuelles des participants (IPD)
Prévoyez-vous de partager les données individuelles des participants (DPI) ?
Informations sur les médicaments et les dispositifs, documents d'étude
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