Relationships Between Anterior and Condylar Guidance - Comparison by CBCT and Electronic Axiography

Temporomandibular Joint Disorders Clinical Trial

Official title:

Complicated Relationships Between Anterior and Condylar Guidance and Their Clinical Implications- Comparison by Cone Beam Computed Tomography and Electronic Axiography - an Observational Cohort Cross-sectional Study.

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT05637372
• Other study ID #: NKBBN/1043/2021-2022-SCGA
• Status: Completed
• Start date: July 20, 2022
• Est. completion date: October 20, 2022

Study information

• Verified date: November 2022
• Source: Medical University of Gdansk
• Contact: n/a
• Is FDA regulated: No
• Study type: Observational

Clinical Trial Summary

The aim of the following study was to investigate the existence of a statistically significant correlation between the incisal features (incisal guidance angle, interincisal angle, overbite, overjet), temporomandibular joint (TMJ) morphology and its function. The hypothesis was: I. The protrusive movement of the mandible does correlate with the TMJ anatomy. II. The protrusive movement of the mandible does not correlate with the incisal features. III. The position and relationship of upper and lower permanent incisors do not have a direct and significant effect on the TMJ morphology in young adults.

Description:

The study was based on anatomical and functional measurements of the parameters within the masticatory system. The study group was composed in a way that all the participants (age 20-24) had the temporomandibular joints fully developed and at the same time not yet modified by adaptive processes.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 30
• Est. completion date: October 20, 2022
• Est. primary completion date: August 19, 2022
• Gender: All
• Age group: 20 Years to 24 Years

Eligibility

Inclusion Criteria:

• 20-24 years old

Exclusion Criteria:

• history of trauma, orthodontic treatment or temporomandibular disorders

Related Conditions & MeSH terms

• Joint Diseases
• Occlusion
• Temporomandibular Joint Disorders
• Temporomandibular Joint Dysfunction Syndrome

Intervention

Radiation:
• CBCT
CBCT scan

Locations

Country	Name	City	State
Poland	Dental Sense Medicover	Gdansk	Województwo Pomorskie

Sponsors (1)

Lead Sponsor	Collaborator
Medical University of Gdansk

Country where clinical trial is conducted

Poland, 

References & Publications (6)

Dawson PE. Determining the determinants of occlusion. Int J Periodontics Restorative Dent. 1983;3(6):8-21. No abstract available. — View Citation

Han S, Shin SM, Choi YS, Kim SY, Ko CC, Kim YI. Morphometric analysis for evaluating the relation between incisal guidance angle, occlusal plane angle, and functional temporomandibular joint shape variation. Acta Odontol Scand. 2018 May;76(4):287-293. doi: 10.1080/00016357.2017.1420227. Epub 2018 Jan 11. — View Citation

Luca, L.; Manfredini, D.; Arveda, N.; Rossi, L.; Siciliani, G. A Cone-Beam Computerized Tomography Assessment of the Relationship between Upper Incisors Inclination and Articular Eminence Features in Orthodontically Untreated Patients with Different Facial Type. J World Fed Orthod 2016, 5 (2), 56-63. https://doi.org/10.1016/j.ejwf.2016.05.001

Manfredini D, Lombardo L, Siciliani G. Temporomandibular disorders and dental occlusion. A systematic review of association studies: end of an era? J Oral Rehabil. 2017 Nov;44(11):908-923. doi: 10.1111/joor.12531. Epub 2017 Jul 2. — View Citation

Prasad KD, Shah N, Hegde C. A clinico-radiographic analysis of sagittal condylar guidance determined by protrusive interocclusal registration and panoramic radiographic images in humans. Contemp Clin Dent. 2012 Oct;3(4):383-7. doi: 10.4103/0976-237X.107419. — View Citation

Shreshta P, Jain V, Bhalla A, Pruthi G. A comparative study to measure the condylar guidance by the radiographic and clinical methods. J Adv Prosthodont. 2012 Aug;4(3):153-7. doi: 10.4047/jap.2012.4.3.153. Epub 2012 Aug 28. — View Citation

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Sagittal condylar guidance angle during protrusion	recorded with axiograph	evaluated within 24h from baseline visit
Primary	Vertical height of the temporomandibular joint fossa	measured on Cone Beam Computed Tomography	evaluated within 24h from baseline visit
Primary	Sagittal condylar guidance angle on Cone Beam Computed Tomography	conducted in 4 variants of measurements	evaluated within 24h from baseline visit
Primary	Features of the incisors	incisal guidance angle, interincisal angle, overjet, overbite measured on Cone Beam Computed Tomography	evaluated within 24h from baseline visit