Determination of Incisal Point as Anterior Guide to Transfer Maxillary Casts to Articulator: A Pilot Study
Journal Title: Journal of Dental School Shahid Beheshti University of Medical Sciences - Year 2018, Vol 36, Issue 1
Abstract
Objectives Despite the importance to use face-bow record for transferring maxillary cast to articulator some dentists use average points to avoid the time taken and ease of use. The location of incisal point could help to set the maxillary cast or denture in an appropriate position in mounting stage. This study was designed to determine the incisal point location in antero-posterior and vertical dimensions in different facial forms and genders. Methods Dental casts were obtained from the maxillary jaw of 44 dental students (male and female) and subsequently transferred to the articulator using an ear bow. The three dimensional location of the incisal point in relation to condylar axis was determined using a Coordinated Measuring Machine (CMM).Collected data were compared between male and female participants as well as those of oval, squared and tapered faces. For data analysis Student t test was employed to make the comparisons. Results The mean distance between the incisal point and the center of the condylar axis in antero-posterior and vertical dimensions was 81.28 mm and 42.85 mm respectively. The mean antero-posterior distance was significantly higher among male students (Ρ<0.05). The mean vertical dimensions did not show any significant difference between male and female students (P>0.05). In square facial form, the mean antero-posterior distance was significantly higher compared to the ovoid facial form (P<0.05). Conclusion The differences on incisal points were significant between the two genders only in antero-posterior dimension. A similar finding was noted on square facial form when compared to ovoid facial form. The incisal point was more consistent with the Frankfurt mounting platform compare to Bonwill index.
Authors and Affiliations
Amir Fayaz, Mahsa Hemmati, Fatemeh Sadat Mirhashemi, Yeganeh Memari, Ghassem Ansari
Keywords
Related Articles
- EP ID EP365892
- DOI -
- Views 96
- Downloads 0
Effect of Component Dismantling on Quality of Sterilization of Mechanical Torque Limiting Devices: A Pilot Study
Objectives Dental instruments may serve as a route of infection transmission. The necessity of dismantling of friction-style (FS) and spring-style (SS) mechanical torque limiting devices (MTLDs) prior to disinfection and...
Titanium Implant Osseointegration in Rheumatoid Arthritis Patients: Report of Two Cases
Objectives Dental implant rehabilitation in patients suffering from rheumatoid arthritis (RA) has been reported to improve the quality of life. Implant treatment success depends on many factors such as appropriate osseoi...
Immunohistochemical Comparison of E-cadherin Expression in Oral Lichen Planus with and without Dysplasia
Objectives: E-cadherin is a transmembrane glycoprotein, which is responsible for cell adhesion and its expression decreases in dysplastic lesions. This study aimed to assess the expression of this marker in oral lichen p...
Diagnostic Accuracy of CT Scan for Detection of Cervical Lymph Node Metastasis in Oral Squamous Cell Carcinoma in Comparison with Histopathological Analysis After Neck Dissection
Objectives: Presence/absence of cervical lymph node metastasis plays a critical role in prognosis and survival of patients with oral squamous cell carcinoma (SCC). This study was designed to assess the diagnostic accurac...
The Perceptibility Ccurve Test Applied to CCD and Two Methods of Digitization of Dental Film-based Radiographs
Objectives: Several methods of image acquisition are accessible in dentistry. There is no overall acceptable method for image digitization so all different types of images can be comparable. The objective of this study w...