In this in vitro study, 2 implants were embedded in the interforaminal region of an acrylic model. Two kinds of retention mechanisms were used to construct complete overdentures: ball type and direct abutment (Locator). The ball-type retention mechanism models included 3 different collar heights (1, 2, and 3 mm) with 15 mm occlusal plane height, and 3 different occlusal plane heights (9, 12, an...

The aim of this study was to examine the change in the occlusal plane inclination that takes place during craniofacial growth relative to various facio-cranial reference lines, as well as to find possible differences in means between sexes, to determine if there were correlations among variables, and to find out which of the parameters were the most reliable in determining the occlusal plane in...

The objective of this study was to determine the association of the occlusal plane with level of retromolar pad in dentate individuals. A descriptive cross-sectional study was conducted at the department of Prosthodontics, Armed Forces Institute Dentistry (AFID), Rawalpindi over a period of 6 months and included 60 subjects from either gender with intact dentition. Convenience sampling techniqu...

BACKGROUND The inclination of the occlusal plane (OP) is related to facial types and experiences physiological growth-related changes. The aims of this research were to determine if there were any differences in the inclination of OP in subjects with three types of skeletal malocclusion and to investigate the characteristics and differences of functional occlusal plane (FOP) compared to bisecte...

Received 13/07/92; revised 01/12/92; accepted 20/04/93 * Assistant Professor, Department of Prosthetic Dental Sciences, College of Dentistry, King Saud University ** Lecturer, Department of Restorative Dental Sciences, College of Dentistry, King Saud University, P.O. Box 60169, Riyadh 11545, Saudi Arabia. Address reprint requests to: Dr. M. A. Abdullah * Teledyne Hanau, P.O. Box 203,80 Sonwil D...

OBJECTIVE The purpose of this study was to evaluate, by means of cephalometric appraisal, the vertical effects of non-extraction treatment of adult anterior open bite with clear aligners (Invisalign system, Align Technology, Santa Clara, CA, USA). METHODS Lateral cephalograms of 30 adult patients with anterior open bite treated using Invisalign (22 females, 8 males; mean age at start of treat...

BACKGROUND The porion (Po) is used to construct the Frankfort horizontal (FH) plane for cephalometrics, and the external auditory meatus (EAM) is to transfer and mount the dental model with facebow. The classical assumption is that EAM represents Po by the parallel positioning. However, we are sometimes questioning about the possible positional disparity between Po and EAM, when the occlusal ca...