Vertical palatal bone dimensions on lateral cephalometry and cone-beam computed tomography: implications for palatal implant placement

Abstract

Lateral radiographs allow accurate and adequate assessment of vertical bone before paramedian insertion of palatal implants. The vertical bone dimension as displayed on lateral cephalometry reflects the minimum bone height rather than maximum bone in the median plane. Therefore, a preoperative CT or CBCT is only indicated when the lateral cephalometry reveals a marginal quantity of bone.

Cone beam computed tomography use in orthodontics

“…Some authors suggest that CBCT should be utilized infrequently and only in cases where conventional 2-D imaging will clearly not suffice. 12,49,91 The British Orthodontic Society (BOS) has updated its guidelines for clinical radiology to emphasize the invasiveness of any radiograph and the need for sound clinical judgment when prescribing diagnostic radiographs. 92 Importantly, the BOS guidelines make it clear that there are no criteria for taking routine radiographs, including CBCT scans, in orthodontics patients.…”

Insertion and removal of orthodontic implants

“…5 In the paramedian region, the two approaches were both within the range of the first premolars in a positive linear relation. 5 In the paramedian region, the two approaches were both within the range of the first premolars in a positive linear relation.…”

“…5 In the paramedian region, the two approaches were both within the range of the first premolars in a positive linear relation. 5 A retrospective clinical cohort indicated that 97.8% (89 out of 91) of the patients showed adequate bone volume in lateral cephalometric radiographs. 5 Therefore, preoperative CT or cone beam CT was recommended if lateral cephalometric evaluation reveals a marginal quantity of bone volume.…”

Cone‐Beam Computed Tomography and Interdisciplinary Dentofacial Therapy: An American Academy of Periodontology Best Evidence Review Focusing on Risk Assessment of the Dentoalveolar Bone Changes Influenced by Tooth Movement

“…Cone‐beam computed tomography (CBCT) in periodontology has primarily been used for diagnostic inquiry of regional anatomy and vital structure identification in dental implant treatment 1‐6 . Historically, treatment planning decisions and risk assessment specific to alveolar bone of the natural dentition in patients requiring orthodontic tooth movement has been either intuitive and subjectively measured or determined from clinical information and two‐dimensional (2D) radiographic analyses 7,8 .…”

“…Historically, treatment planning decisions and risk assessment specific to alveolar bone of the natural dentition in patients requiring orthodontic tooth movement has been either intuitive and subjectively measured or determined from clinical information and two‐dimensional (2D) radiographic analyses 7,8 . Unequivocally, studies have confirmed that three‐dimensional (3D) imaging allows for superior measurement accuracy of alveolar ridge height and width, a known limitation of intraoral periapical or panoramic radiographs 1‐6 . It is well recognized that traditional 2D imaging diagnostics do not allow for meaningful dentoalveolar bone risk assessment, namely of the buccal plate, prior to orthodontic tooth movement 7,8 .…”