Occlusal Adjustments Needed for Michigan Splints Made Using Different Digital Bite Records

Summary

This clinical study evaluated digital occlusal recording methods used in the fabrication of Michigan occlusal splints. The objective was to assess whether different digital bite registration techniques influenced the accuracy of occlusal splints and the amount of occlusal adjustment required at clinical fitting.

Participants underwent digital bite registration procedures and received Michigan occlusal splints fabricated using different digital workflows. Follow-up visits were conducted for splint fitting and occlusal assessment. Participant safety and data confidentiality were maintained throughout the study, and all required ethical approvals and risk assessments were obtained prior to study initiation.

The study findings were intended to support improvements in digital dental workflows and enhance the accuracy and efficiency of occlusal splint fabrication.

Conditions

• Temporomandibular Disorders (TMD)

Interventions

DEVICE

Retruded axis position(RAP with) without a digital facebow

The intervention involves the fabrication of Michigan occlusal splints using different digital bite registration workflows. Each participant undergoes digital occlusal recording in centric relation (CR) and intercuspal position (ICP), with and without the use of an Axioprisa® digital facebow, and articulation is performed using Axioprisa® virtual articulator. Four splints are fabricated per participant based on these recordings. Participants are blinded to the recording method used for each splint and try all splints in a crossover manner. Occlusal accuracy and adjustment requirements are evaluated using three-dimensional surface superimposition and root mean square (RMS) deviation analysis.

DEVICE

Digital face-bow, digital bite registration, digital scanning

The intervention involves the fabrication of Michigan occlusal splints using different digital bite registration workflows. Each participant undergoes digital occlusal recording in centric relation (CR) and intercuspal position (ICP), with and without the use of an Axioprisa® digital facebow, and articulation is performed using Axioprisa® virtual articulator. Four splints are fabricated per participant based on these recordings. Participants are blinded to the recording method used for each splint and try all splints in a crossover manner. Occlusal accuracy and adjustment requirements are evaluated using three-dimensional surface superimposition and root mean square (RMS) deviation analysis.

DEVICE

Digital facebow, digital bite registration, digital scanning

The intervention involves the fabrication of Michigan occlusal splints using different digital bite registration workflows. Each participant undergoes digital occlusal recording in centric relation (CR) and intercuspal position (ICP), with and without the use of an Axioprisa® digital facebow, and articulation is performed using Axioprisa® virtual articulator. Four splints are fabricated per participant based on these recordings. Participants are blinded to the recording method used for each splint and try all splints in a crossover manner. Occlusal accuracy and adjustment requirements are evaluated using three-dimensional surface superimposition and root mean square (RMS) deviation analysis.

Sponsors & Collaborators

• Guy's Hospital

  collaborator OTHER

• King's College London

  lead OTHER

Study Design

Allocation

NON_RANDOMIZED

Purpose

HEALTH_SERVICES_RESEARCH

Masking

SINGLE

Model

CROSSOVER

Eligibility

Min Age

18 Years

Max Age

65 Years

Sex

ALL

Healthy Volunteers

Yes

Timeline & Regulatory

Start

2024-03-01

Primary Completion

2025-12-01

Completion

2025-12-15

Countries

• United Kingdom

Study Locations