Intercondylar width as a guide to setting up complete denture teeth

Abstract

A clinical study was designed to investigate the relationship between intercondylar width (ICW) and inter-dental widths of the upper and lower canines and first molars to aid in denture teeth positioning. The study was divided into two parts so that the results of the first part could be verified in the second part. In the first part, 27 adult subjects were selected according to the exclusion criteria of the study. A kinematic hinge axis locator was used to locate the true point of condylar rotation. The distance between these points was considered to be the ICW. A strong correlation was found between ICW and interdental measurements, with ICW and upper first molars being the strongest (r=0.612, P= 0.004). A set of indices developed from the results was recommended for the positioning of complete denture teeth. In the second part of the study, inter-dental measurements were estimated using the indices obtained in the first part. The estimated inter-dental widths showed no significant differences compared with the real widths (P= 0.109, P=0.849, P=0.353, P=0.41). Based on the results of this study, ICW measurements can be used for setting up canines and first molars in complete dentures.

Facial aesthetic evaluation of rehabilitation effects in edentulous patients with varying degrees of residual ridge resorption by 3D stereophotogrammetry

“…In accordance with other studies, 33 a longer period of time after tooth loss can lead to lower mandible height (Table 1) and unfavourable maxillary ridge morphology. Afterwards, in prolonged edentulousness, the resorption of alveolar may result in patients appearing to have an Angle Class III occlusion, 34 which will increase the difficulty of facial aesthetic rehabilitation. Fortunately, all patients in the study still appeared to have an Angle Class I occlusion.…”

Relationship of Inter-Condylar Distance With Inter-Dental Distance Of Maxillary Arch and Occlusal Vertical Dimension: A Clinical Anthropometric Study

“…It also provides adequate clearance for tongue and buccal corridor space and improves the stability of the prosthesis. The ICD of human remains fairly static throughout the life [14]. In this study ICD is calculated by subtracting the intermediate soft tissue thickness from the IFW measured between the two Denar posterior reference points.…”

“…Keshvad et al, [14] investigated that ICD is 3.39 times greater than U3 and 2.19 times of U6 in Sheffield population. This shows that the relationship of ICD to Inter-dental distance varies according to different racial group of population.…”

“…El-Gheriani et al, found that the position of the upper posterior teeth has a constant relationship with the lateral arm of the Gothic arch tracing or Inter-canine distance [12,13]. Keshvad et al, has proposed that the ICD could be used as a reliable guideline for complete denture teeth arrangement [14].…”

Assessment of Inter-Condylar Distance as a guide for Arrangement of Maxillary Prosthetic Teeth

“…However, the tooth loss inevitably results in the resorption of the residual alveolar ridge to some extent depending upon various mechanical, anatomical and metabolic factors [1] . The maxillary alveolar ridge migrates upwards and inwards whereas the mandibular alveolar ridge migrates downwards and outwards making the arrangement of the artificial teeth more difficult in a patient with long term edentulism [2] . Hence certain stable anatomical landmarks and their relation with the position of natural teeth can be used to arrange the artificial teeth as close to the position as their natural predecessors.…”