Relationships Between Anterior and Condylar Guidance - Comparison by CBCT and Electronic Axiography
Study Details
Study Description
Brief 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:
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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.
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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.
| Condition or Disease | Intervention/Treatment | Phase |
|---|---|---|
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Detailed 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.
Study Design
Arms and Interventions
| Arm | Intervention/Treatment |
|---|---|
| Study group Patients without any disorders and diseases in age range ensuring full temporomandibular joint development. |
Radiation: CBCT
CBCT scan
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Outcome Measures
Primary Outcome Measures
- Sagittal condylar guidance angle during protrusion [evaluated within 24h from baseline visit]
recorded with axiograph
- Vertical height of the temporomandibular joint fossa [evaluated within 24h from baseline visit]
measured on Cone Beam Computed Tomography
- Sagittal condylar guidance angle on Cone Beam Computed Tomography [evaluated within 24h from baseline visit]
conducted in 4 variants of measurements
- Features of the incisors [evaluated within 24h from baseline visit]
incisal guidance angle, interincisal angle, overjet, overbite measured on Cone Beam Computed Tomography
Eligibility Criteria
Criteria
Inclusion Criteria:
- 20-24 years old
Exclusion Criteria:
- history of trauma, orthodontic treatment or temporomandibular disorders
Contacts and Locations
Locations
| Site | City | State | Country | Postal Code | |
|---|---|---|---|---|---|
| 1 | Dental Sense Medicover | Gdańsk | Województwo Pomorskie | Poland | 80-283 |
Sponsors and Collaborators
- Medical University of Gdansk
Investigators
- Study Director: Łukasz Lassmann, DDS, Dental Sense Medicover, 80-283 Gdańsk, Poland
Study Documents (Full-Text)
None provided.More Information
Publications
- Dawson PE. Determining the determinants of occlusion. Int J Periodontics Restorative Dent. 1983;3(6):8-21. No abstract available.
- 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.
- 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.
- 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.
- 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.
- NKBBN/1043/2021-2022-SCGA