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Die klinische Studie NCT07280130 für Dental Occlusion, Occlusal Wear of Teeth, Fixed Dental Prosthesis ist noch nicht rekrutierend. In der Kartenansicht des Klinische Studien Radar und den KI-Entdeckungstools finden Sie alle Details. Oder stellen Sie hier Ihre Fragen. | ||
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Nationaluniversität TaiwanEvaluation of Occlusal Adjustment Material Removal on Monolithic Zirconia Blocks: An In Vitro Study 120
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Die klinische Studie NCT07280130 ist eine beobachtungsstudie zur Untersuchung von Dental Occlusion, Occlusal Wear of Teeth, Fixed Dental Prosthesis und hat den Status noch nicht rekrutierend. Der Start ist für 1. Februar 2026 geplant, bis 120 Teilnehmer aufgenommen werden. Durchgeführt von Nationaluniversität Taiwan wird der Abschluss für 31. Dezember 2027 erwartet. Die Daten von ClinicalTrials.gov wurden zuletzt am 30. Dezember 2025 aktualisiert.
Kurzbeschreibung
This study aims to improve understanding of the amount of tooth-replacement material removed during a single grinding "stroke" performed in the adjustment of a zirconia crown. Zirconia is a highly durable ceramic material commonly used for dental restorations, and accurate adjustment is essential for achieving proper occlusion. However, existing literature does not provide quantitative data regarding material removal...Mehr anzeigen
Ausführliche Beschreibung
Clinical occlusal adjustment requires precision within tens of micrometers; however, current literature lacks objective data regarding per-stroke material removal during chairside adjustment of monolithic zirconia. As a result, clinical decision-making largely depends on subjective judgment.
Objective
The objective of this study is to quantify material removal per single reciprocating grinding stroke on monolithic ...
Mehr anzeigenOffizieller Titel
Evaluation of Occlusal Adjustment Material Removal on Monolithic Zirconia Blocks: An In Vitro Study
Erkrankungen
Dental OcclusionOcclusal Wear of TeethFixed Dental ProsthesisWeitere Studien-IDs
- 202510051RINA
NCT-Nummer
Studienbeginn (tatsächlich)
2026-02-01
Zuletzt aktualisiert
2025-12-30
Studienende (vorauss.)
2027-12-31
Geplante Rekrutierung
120
Studientyp
Beobachtungsstudie
Status
Noch nicht rekrutierend
Stichwörter
occlusal adjustment
Monolithic zirconia
Material removal
Silicon carbide stone
3D scan registration
Monolithic zirconia
Material removal
Silicon carbide stone
3D scan registration
Studienarme/Interventionen
| Teilnehmergruppe/Studienarm | Intervention/Behandlung |
|---|---|
A.fourth-year dental students Forty fourth-year dental students who have completed preclinical courses in operative dentistry, complete denture prosthodontics, and fixed prosthodontics (Part I). They have little to no experience in adjusting zirconia. | perform material removal on monolithic zirconia Each participant will perform 100 strokes along an 8-mm path at a rate of 100 strokes per minute, guided by a metronome on the monolithic zirconia |
B.sixth-year interns Forty sixth-year dental interns. Each participant will be tested twice-once before and once near the end of their clinical training. A questionnaire will also record their prosthodontic clinical experience within the past year. | perform material removal on monolithic zirconia Each participant will perform 100 strokes along an 8-mm path at a rate of 100 strokes per minute, guided by a metronome on the monolithic zirconia |
C.clinicians Forty licensed clinicians with 0-5 years of post-graduation experience (with practical experience in zirconia adjustment). A questionnaire will also document their clinical experience in prosthodontics. | perform material removal on monolithic zirconia Each participant will perform 100 strokes along an 8-mm path at a rate of 100 strokes per minute, guided by a metronome on the monolithic zirconia |
Hauptergebnismessungen
Nebenergebnismessungen
| Ergebnismessung | Beschreibung der Messung | Zeitrahmen |
|---|---|---|
The amount of material removal per stroke | Amount of Zirconia Material Removed per Grinding Stroke(um/stroke)
* Mean thickness of material removed per stroke
* Median thickness of material removed per stroke | about 12 months |
| Ergebnismessung | Beschreibung der Messung | Zeitrahmen |
|---|---|---|
Change in Material Removal Rate Between Grinding Phases | Difference in mean zirconia material removal per stroke between early grinding phase (strokes 1-50) and late grinding phase (strokes 51-100)
Unit of Measure: μm/stroke (difference between phases) | approximately 12 months |
Percentile Distribution of Zirconia Material Removal by Operator Experience Level | Percentile distribution (e.g., 25th, 50th, 75th percentiles) of zirconia material removal per grinding stroke within each operator experience group
Unit of Measure: percentile values | approximately 12 months |
Teilnahme-Assistent
Eignungskriterien
Zugelassene Altersgruppen
Erwachsene
Mindestalter
20 Years
Zugelassene Geschlechter
Alle
Akzeptiert gesunde Freiwillige
Ja
Group A: Forty fourth-year dental students who have completed preclinical courses in operative dentistry, complete denture prosthodontics, and fixed prosthodontics (Part I). They have little to no experience in adjusting zirconia.
Group B: Forty sixth-year dental interns. Each participant will be tested twice-once before and once near the end of their clinical training. A questionnaire will also record their prosthodontic clinical experience within the past year.
Group C: Forty licensed clinicians with 0-5 years of post-graduation experience (with practical experience in zirconia adjustment). A questionnaire will also document their clinical experience in prosthodontics.
- Acute upper-limb/hand injuries or postoperative recovery within the past 3 months that may affect grip strength or fine motor control.
- Neuromuscular disorders or tremor/postural control impairments (e.g., essential tremor, peripheral neuropathy, moderate to severe carpal tunnel syndrome) that prevent stable operation.
- Uncorrected or inadequately corrected vision that does not meet the requirements for close-range tasks (e.g., inability to clearly see fine markings at a distance of 30-40 cm even with correction).
- Inability to follow the metronome rhythm (100 beats per minute).
Nationaluniversität TaiwanZentrale Studienkontakte
Kontakt: Yihao Lan, DDS, MSD, 0922901103, [email protected]
Keine Standortdaten vorhanden