Sequential Practicing on Psychomotor Skill Acquisition in Undergraduate Dental Students (Dentalpractice)

Influence of Sequential Practicing for Psychomotor Skill Acquisition of Non-dominant Hand in Undergraduate Dental Students: A Randomized Controlled Trial With Qualitative Approach

To determine the influence of hand practice sequence on psychomotor skill acquisition in a glass ceramic onlay preparation among undergraduate dental students.

Study Overview

• Status: Not yet recruiting
• Conditions: Dental Restorations; Dental Prosthesis; Education, Competency-Based; Undergraduate Health Professional Students; Dental Education and Special Care Dentistry
• Intervention / Treatment: Procedure: Glass ceramic onlay preparation

Detailed Description

Effect of bilateral transfer practice on psychomotor skill acquisition among dental students remains unresolved. Bilateral transfer assumed that training one side of the body can also improve performance on the other side. Eligible participants are fourth- to sixth-year undergraduate dental students at the Faculty of Dentistry, Chulalongkorn University during the 2024 to 2025 academic year. The participants were categorized as left- or right-handed based on self-reporting. Participants enrolled two-day study with one-week separating inverval. On the first day, they learn a video presentation on glass ceramic onlay preparation followed by two practice sessions with 2-hour within each session. The practice start with either using non-dominant or dominant hand, followed by the use of non-dominant hand. One week later, they enroll two-hour practical examination on glass ceramic onlay preparation using their non-dominant hand. No practice is allowed during one-week separating interval.

• Study Type: Interventional
• Enrollment (Estimated): 28
• Phase: Not Applicable

Contacts and Locations

• Study Contact: Name: Nareudee Limpuangthip, DDS, PhD; Phone Number: +66891426076; Email: Nareudee.L@chula.ac.th

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Child; Adult; Older Adult
• Accepts Healthy Volunteers: Yes

Description

Inclusion Criteria:

1. The fourth- to sixth-year undergraduate dental students at a single setting of school
2. The fifth- and sixth-year students had completed laboratory and lecture courses in operative and fixed dental prosthodontics
3. The fourth-year students are enrolled in their final laboratory and lecture courses in fixed prosthodontics.

Exclusion Criteria:

Undergraduate dental students who have prior experience with onlay preparation in laboratory or clinical settings or those who are unwillingness to adhere to the study protocol.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Other
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: Double

Number of Arms

4

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Left: dominant - non dominant; The left-handed participants in this arm started practicing a tooth preparation for a glass ceramic onlay using their dominant left hand during the first practicing session, followed by non-dominant right hand during the second practicing session. Each practice session is limited to 2 hours.	Procedure: Glass ceramic onlay preparation; The participants engaged in two practice sessions, each lasting two hours. They either started with their dominant hand followed by non-dominant hand or practiced solely with their non-dominant hand. Each participant prepared a mandibular left first molar resin typodont fixed to the table for a glass ceramic onlay restoration. Preparation was conducted extraorally.
Active Comparator: Left: non dominant; The left-handed participants in this arm practicing a tooth preparation for a glass ceramic onlay using their non-dominant right hand for both the first and second practicing sessions. Each practice session is limited to 2 hours.	Procedure: Glass ceramic onlay preparation; The participants engaged in two practice sessions, each lasting two hours. They either started with their dominant hand followed by non-dominant hand or practiced solely with their non-dominant hand. Each participant prepared a mandibular left first molar resin typodont fixed to the table for a glass ceramic onlay restoration. Preparation was conducted extraorally.
Experimental: Right: dominant - non dominant; The right-handed participants in this arm started practicing a tooth preparation for a glass ceramic onlay using their dominant right hand during the first practicing session, followed by non-dominant left hand during the second practicing session. Each practice session is limited to 2 hours.	Procedure: Glass ceramic onlay preparation; The participants engaged in two practice sessions, each lasting two hours. They either started with their dominant hand followed by non-dominant hand or practiced solely with their non-dominant hand. Each participant prepared a mandibular left first molar resin typodont fixed to the table for a glass ceramic onlay restoration. Preparation was conducted extraorally.
Active Comparator: Right: non dominant; The right-handed participants in this arm practicing tooth preparation for glass ceramic onlay using their non-dominant left hand for both the first and second practicing sessions. Each practice session is limited to 2 hours.	Procedure: Glass ceramic onlay preparation; The participants engaged in two practice sessions, each lasting two hours. They either started with their dominant hand followed by non-dominant hand or practiced solely with their non-dominant hand. Each participant prepared a mandibular left first molar resin typodont fixed to the table for a glass ceramic onlay restoration. Preparation was conducted extraorally.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Onlay preparation score	Onlay preparation criteria using Rubic scale, assessed by the student self-assessment and one prosthodontic staff. The higher score indicates better performance of the student	3 hours

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Qualitative measurement by focus group interview	Focus group interview based on the semi-structural questionnaire regarding individual perception on the onlay preparation during practice and test sessions.	1 hours

Collaborators and Investigators

• Sponsor: Chulalongkorn University
• Investigators: Principal Investigator: Nareudee Limpuangthip, DDS, PhD, Chulalongkorn University

Study record dates

Study Major Dates

• Study Start (Estimated): March 31, 2025
• Primary Completion (Estimated): May 30, 2025
• Study Completion (Estimated): July 4, 2025

Study Registration Dates

• First Submitted: March 2, 2025
• First Submitted That Met QC Criteria: March 2, 2025
• First Posted (Actual): March 25, 2025

Study Record Updates

• Last Update Posted (Actual): April 2, 2025
• Last Update Submitted That Met QC Criteria: March 27, 2025
• Last Verified: March 1, 2025

More Information

Terms related to this study

• Keywords: healthcare; competency; dominant hand; sequential practice; dental education; prosthodontic
• Other Study ID Numbers: TCTR20241210005; Thai Clinical Trial.org (Other Identifier: Thai Clinical Trials Registry (TCTR))

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO
• IPD Plan Description: The enrolled participants would not prefer to declare their onlay preparation score individually.

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No
• product manufactured in and exported from the U.S.: No