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After the loss of several adjacent posterior teeth, bone resorption occurs that can lead to a marked occlusal discrepancy between arches. This discrepancy may originate from the more pronounced resorption at the facial portion of the alveolar bone crest, often resulting in a more palatal implant position. Therefore, establishing normal overbite and cusp-fossa relation may become difficult, namely causing inappropriate crown contours and emergence profiles. This manuscript describes a technique in which a different occlusal configuration is given to solve some problems that edge-to-edge occlusal configuration produces. For instance, patients may suffer from cheek and/or tongue biting after the delivery of a maxillary posterior implant-supported fixed dental prosthesis resulting in an edge-to-edge occlusal configuration. In instances of severe maxillary resorption in the posterior buccal zone, it is recommended to consider a distinct cross-bite occlusion and by this prevent the well-known discomfort and clinical signs associated with both an edge-to-edge interarch relationship or a so-called "stretched" transversal overbite.
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http://dx.doi.org/10.1111/jopr.12912 | DOI Listing |
J Ayub Med Coll Abbottabad
November 2024
Akbar Niazi Teaching Hospital, Islamabad-Pakistan.
Background: Palate, a midface bone, shapes the face and supports buttresses. Palatine process of maxilla and horizontal plate of palatine bone constitute it. Palatal bone is thicker anteriorly and laterally than posteriorly and centrally.
View Article and Find Full Text PDFJ Dent Sci
October 2024
School of Dentistry, China Medical University, Taichung, Taiwan.
Background/purpose: Clear aligners are popular orthodontic tools because of their relatively aesthetic appearance and convenience of use. Nevertheless, bodily tooth movements still present challenges. This study evaluated various configurations of attachments placed on the mandibular canine in terms of the efficiency of canine bodily movement and correction of tipping.
View Article and Find Full Text PDFJ Prosthodont
September 2024
Department of Prosthodontics, Dental Materials Research Center, Isfahan University of Medical Sciences, Isfahan, Iran.
Purpose: This study aimed to comparatively analyze full-arch mandibular reconstruction using dental implants. It focused on two distinct prosthesis configurations: completely splinted and segmentally splinted. These configurations were evaluated under two different occlusal schemes-group function and canine guidance-utilizing finite element analysis (FEA).
View Article and Find Full Text PDFBMC Oral Health
August 2024
Faculty of Dentistry, Department of Orthodontics, The University of Sydney, Sydney, Australia.
Objective: To evaluate the effects of different attachment configurations with and without buccal root torque on expansion movements achieved with aligners through finite element analysis (FEA).
Methods: FEA modelling was done with 0.25 mm buccal expansion force application to the maxillary molars with different attachment configurations: Eight models were tested (1) no attachment (NA), (2) horizontal attachment (HA), (3) gingivally beveled horizontal attachment (GHA), and (4) occlusally beveled horizontal attachment (OHA), as well as models with 6buccal root torque, (5) no attachment (TNA), (6) horizontal attachment (THA), (7) gingivally beveled horizontal attachment (TGHA), and (8) occlusally beveled horizontal attachment (TOHA).
J Clin Pediatr Dent
July 2024
Department of Dental Public Health, Faculty of Dental Medicine, Medical University of Sofia, 1000 Sofia, Bulgaria.
This study aimed to characterize the anatomical and physiological features of pits and fissures in primary and permanent molars by microtomographic (micro-CT) examination and three-dimensional (3D) printing. The occlusal surfaces of 84 primary molars and 60 permanent third molars were examined. The samples were scanned with micro-CT and the occlusal surface separated.
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