The thickness of alveolar bone at the maxillary canine and premolar teeth in normal occlusion

Abstract

PurposeThe main purpose of this study was to investigate bone thickness on the buccal and palatal aspects of the maxillary canine and premolars using cone-beam computed tomography (CBCT). The differences between left- and right-side measurements and between males and females were also analyzed.MethodsThe sample consisted of 20 subjects (9 males and 11 females; mean age, 21.9±3.0) selected from the normal occlusion sample data in the Department of Orthodontics, The Catholic University of Korea. The thickness of the buccal and palatal bone walls, perpendicular to the long axis of the root were evaluated at 3 mm and 5 mm apical to cemento-enamel junction (CEJ) and at root apex.ResultsAt the canines and first premolars regions, mean buccal bone thickness of at 3 mm and 5 mm apical to CEJ were less than 2 mm. In contrast, at the second premolar region, mean buccal bone thickness at 3 mm and 5 mm apical from CEJ were greater than 2 mm. Frequency of thick bone wall (≥2 mm) increased from the canine to the second premolar.ConclusionsThis result should be considered before tooth extraction and planning of rehabilitation in the canine and premolar area of maxilla. Careful preoperative analysis with CBCT may be beneficial to assess local risk factors and to achieve high predictability of success in implant therapy.

Use of cone beam computed tomography in periodontology

“…Immediate implant placement enables one-stage surgery and eliminates bone recovery time. In this technique, dimensions of alveolar process which is selected for dental implant placement and relationships with adjacent anatomical structures of this region should be carefully assessed [8,35] . Jin et al [35] studied bone thickness evaluation on the buccal and palatal aspects of the maxillary canine and premolars using CBCT and it was concluded that CBCT images might be advantageous in preoperative planning of dental implants [35] .…”

“…In this technique, dimensions of alveolar process which is selected for dental implant placement and relationships with adjacent anatomical structures of this region should be carefully assessed [8,35] . Jin et al [35] studied bone thickness evaluation on the buccal and palatal aspects of the maxillary canine and premolars using CBCT and it was concluded that CBCT images might be advantageous in preoperative planning of dental implants [35] . As a summary, in cases, where two-dimensional imaging is an inadequate method for accurate diagnosis of periodontal defect configuration and guiding for appropriate treatment planning, three-dimensional radiographic examinations may be required.…”

Crown lengthening procedures: A literature review

“…36,37 The mean width of the facial alveolar bone wall is increased toward posterior regions. 37,38 Contradictory findings have been reported relative to the relationship between the thickness of buccal gingiva and that of the underlying facial osseous plate. In maxillary anterior teeth, Cook et al 39 found a significant association between gingival biotype and labial plate thickness while only a moderate or no correlation was demonstrated in other studies.…”

Topographic analysis of the mandibular symphysis in a normal occlusion population using cone-beam computed tomography

“…The data of 20 subjects (9 males and 11 females; mean age, 21.9±3.0 years) with normal occlusion were obtained from the Department of Orthodontics, The Catholic University of Korea (Seoul, Korea). The 20 subjects and the inclusion criteria were consistent with that of our previous study (12). Briefly, the criteria were: i) Periodontally healthy dentition; ii) normal occlusion; and iii) no previous orthodontic treatment.…”