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.
Studieöversikt
Status
Betingelser
Studietyp
Inskrivning (Beräknad)
Kontakter och platser
Studiekontakt
- Namn: Thanomsuk Jearanaiphaisarn
- Telefonnummer: 6622188795
- E-post: thanomsuk.j@chula.ac.th
Studieorter
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Bangkok, Thailand, 10330
- Graduate Endodontic Clinic, Faculty of Dentistry, Chulalongkorn university
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Kontakt:
- Thanomsuk Jearanaiphaisarn
- Telefonnummer: 6622188795
- E-post: thanomsuk.j@chula.ac.th
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Kontakt:
- Uraiwan Chokechanachaisakul
- Telefonnummer: 6622188795
- E-post: uraiwan.c@chula.ac.th
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Huvudutredare:
- Prom Wongmaneerojn
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Deltagandekriterier
Urvalskriterier
Åldrar som är berättigade till studier
- Vuxen
Tar emot friska volontärer
Testmetod
Studera befolkning
Beskrivning
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.
Studieplan
Hur är studien utformad?
Designdetaljer
Kohorter och interventioner
Grupp / Kohort |
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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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Vad mäter studien?
Primära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
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Maximum bite force
Tidsram: 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
Tidsram: 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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Sekundära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
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Patients' subjective perception of chewing function
Tidsram: 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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Samarbetspartners och utredare
Sponsor
Studieavstämningsdatum
Studera stora datum
Studiestart (Beräknad)
Primärt slutförande (Beräknad)
Avslutad studie (Beräknad)
Studieregistreringsdatum
Först inskickad
Först inskickad som uppfyllde QC-kriterierna
Första postat (Faktisk)
Uppdateringar av studier
Senaste uppdatering publicerad (Faktisk)
Senaste inskickade uppdateringen som uppfyllde QC-kriterierna
Senast verifierad
Mer information
Termer relaterade till denna studie
Nyckelord
Ytterligare relevanta MeSH-villkor
Andra studie-ID-nummer
- HREC-DCU 2025-206
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