{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T20:07:33Z","timestamp":1790798853981,"version":"4.1.0"},"reference-count":26,"publisher":"MDPI AG","issue":"9","license":[{"start":{"date-parts":[[2025,9,22]],"date-time":"2025-09-22T00:00:00Z","timestamp":1758499200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Dentistry Journal"],"abstract":"<jats:p>Background\/Objectives: This study aimed to investigate the relationships between facial morphology and alveolar crest cortical bone thickness and to determine the computed tomography (CT) values using multidetector CT (MDCT). Methods: A total of 39 subjects were categorized into three groups based on the Frankfort mandibular plane angle: low angle, average angle, and high angle. The thickness of the alveolar crest cortical bone and CT values between the canines and first premolars and between the second premolars and first molars in the maxilla and mandible were measured and analyzed from pre-treatment MDCT images. The Kruskal\u2013Wallis and Dunn\u2013Bonferroni tests were applied to investigate the relationships between facial types and alveolar crest cortical bone thickness, and to determine the CT values. Results: Significant differences in cortical bone thickness between the mandibular premolar and first molar were observed when comparing the high-angle group with the low-angle group (p = 0.001) and the average-angle group with the low-angle group (p = 0.022). Conclusions: These findings indicate that examining facial type may reveal differences in anchor loss in the mandibular molar region, which could prove useful in formulating treatment plans.<\/jats:p>","DOI":"10.3390\/dj13090437","type":"journal-article","created":{"date-parts":[[2025,9,22]],"date-time":"2025-09-22T17:08:17Z","timestamp":1758560897000},"page":"437","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Relationship Between Facial Types and Alveolar Crest Cortical Bone Thickness and CT Values Determined by Multidetector Computed Tomography"],"prefix":"10.3390","volume":"13","author":[{"ORCID":"https:\/\/orcid.org\/0009-0000-8218-8614","authenticated-orcid":false,"given":"Masahiro","family":"Kitano","sequence":"first","affiliation":[{"name":"Department of Oral and Maxillofacial Growth and Development, Orthodontics and Dentofacial Orthopedics, The Nippon Dental University Graduate School of Life Dentistry at Niigata, Niigata 951-8580, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shin","family":"Ota","sequence":"additional","affiliation":[{"name":"Department of Orthodontics, The Nippon Dental University School of Life Dentistry at Niigata, Niigata 951-8580, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shigeki","family":"Iijima","sequence":"additional","affiliation":[{"name":"Department of Oral and Maxillofacial Growth and Development, Orthodontics and Dentofacial Orthopedics, The Nippon Dental University Graduate School of Life Dentistry at Niigata, Niigata 951-8580, Japan"},{"name":"Department of Orthodontics, The Nippon Dental University School of Life Dentistry at Niigata, Niigata 951-8580, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9169-8429","authenticated-orcid":false,"given":"Ichiro","family":"Ogura","sequence":"additional","affiliation":[{"name":"Department of Oral and Maxillofacial Radiology, The Nippon Dental University School of Life Dentistry at Niigata, Niigata 951-8580, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2025,9,22]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"166","DOI":"10.1016\/S0889-5406(99)70345-8","article-title":"Skeletal anchorage system for open-bite correction","volume":"115","author":"Umemori","year":"1999","journal-title":"Am. J. Orthod. Dentofac. Orthop."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"621","DOI":"10.1016\/j.ajodo.2007.03.022","article-title":"Mini-implant anchorage for the orthodontic practitioner","volume":"133","author":"Baumgaertel","year":"2008","journal-title":"Am. J. Orthod. Dentofac. Orthop."},{"key":"ref_3","first-page":"699","article-title":"The skeletal cortical anchorage using titanium microscrew implants","volume":"29","author":"Park","year":"1999","journal-title":"Korean J. Orthod."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"1209","DOI":"10.1016\/j.joms.2006.04.016","article-title":"The use of microimplants in orthodontic anchorage","volume":"64","author":"Chen","year":"2006","journal-title":"J. Oral Maxillofac. Surg."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"562","DOI":"10.1093\/ejo\/cji052","article-title":"Comparative data on facial morphology and muscle thickness using ultrasonography","volume":"27","author":"Arun","year":"2005","journal-title":"Eur. J. Orthod."},{"key":"ref_6","first-page":"146","article-title":"Vertical growth changes after adenoidectomy","volume":"73","author":"Arun","year":"2003","journal-title":"Angle Orthod."},{"key":"ref_7","first-page":"557","article-title":"Relationship between facial types and tooth and bone characteristics of the mandible obtained by CT scanning","volume":"68","author":"Tsunori","year":"1998","journal-title":"Angle Orthod."},{"key":"ref_8","doi-asserted-by":"crossref","unstructured":"Yashima, Y., Kaku, M., Yamamoto, T., Medina, C.C., Ono, S., Takeda, Y., and Tanimoto, K. (2023). Camouflage Correction of Skeletal Class III Severe Open Bite with Tooth Ankylosis Treated by Temporary Anchorage Devices: A Case Report. Dent. J., 11.","DOI":"10.3390\/dj11040107"},{"key":"ref_9","doi-asserted-by":"crossref","unstructured":"Yong, T.H., Yang, S., Lee, S.J., Park, C., Kim, J.E., Huh, K.H., Lee, S.S., Heo, M.S., and Yi, W.J. (2021). QCBCT-NET for direct measurement of bone mineral density from quantitative cone-beam CT: A human skull phantom study. Sci. Rep., 11.","DOI":"10.1038\/s41598-021-94359-2"},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"30","DOI":"10.1016\/j.ajodo.2006.01.044","article-title":"Density of the alveolar and basal bones of the maxilla and the mandible","volume":"133","author":"Park","year":"2008","journal-title":"Am. J. Orthod. Dentofac. Orthop."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"190","DOI":"10.1016\/j.ajodo.2012.09.013","article-title":"Cortical bone thickness of the alveolar process measured with cone-beam computed tomography in patients with different facial types","volume":"143","author":"Ozdemir","year":"2013","journal-title":"Am. J. Orthod. Dentofac. Orthop."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"431","DOI":"10.1016\/S0889-5406(96)70047-1","article-title":"Craniofacial structure of Japanese and European-American adults with normal occlusions and well-balanced faces","volume":"110","author":"Miyajima","year":"1996","journal-title":"Am. J. Orthod. Dentofac. Orthop."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"182","DOI":"10.5395\/rde.2013.38.3.182","article-title":"Statistical notes for clinical researchers: Evaluation of measurement error 2: Dahlberg\u2019s error, Bland-Altman method, and Kappa coefficient","volume":"38","author":"Kim","year":"2013","journal-title":"Restor. Dent. Endod."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"721.e7","DOI":"10.1016\/j.ajodo.2006.02.026","article-title":"Quantitative evaluation of cortical bone thickness with computed tomographic scanning for orthodontic implants","volume":"129","author":"Deguchi","year":"2006","journal-title":"Am. J. Orthod. Dentofac. Orthop."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"20140238","DOI":"10.1259\/dmfr.20140238","article-title":"CBCT-based bone quality assessment: Are Hounsfield units applicable?","volume":"44","author":"Pauwels","year":"2015","journal-title":"Dentomaxillofac. Radiol."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"39","DOI":"10.1038\/sj.dmfr.4600220","article-title":"The application of three-dimensional quantitative computed tomography to the maxillofacial skeleton","volume":"26","author":"Maki","year":"1997","journal-title":"Dentomaxillofac. Radiol."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"79","DOI":"10.1034\/j.1600-0501.2001.012001079.x","article-title":"Bone classification: An objective scale of bone density using the computerized tomography scan","volume":"12","author":"Norton","year":"2001","journal-title":"Clin. Oral Implant. Res."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"15","DOI":"10.1093\/ejo\/23.1.15","article-title":"Relationships among facial type, buccolingual molar inclination, and cortical bone thickness of the mandible","volume":"23","author":"Masumoto","year":"2001","journal-title":"Eur. J. Orthod."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"713","DOI":"10.1016\/j.ajodo.2025.01.014","article-title":"Bone mineral density and anatomic limitations of miniscrew placement at buccal interradicular sites: A quantitative computed tomography study","volume":"167","author":"Son","year":"2025","journal-title":"Am. J. Orthod. Dentofac. Orthop."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"256","DOI":"10.1016\/0002-9416(81)90289-X","article-title":"The effect of altered bone metabolism on orthodontic tooth movement","volume":"80","author":"Midgett","year":"1981","journal-title":"Am. J. Orthod."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"26","DOI":"10.1111\/j.1601-6343.2004.00278.x","article-title":"Tissue reaction to orthodontic tooth movement in acute and chronic corticosteroid treatment","volume":"7","author":"Kalia","year":"2004","journal-title":"Orthod. Craniofac. Res."},{"key":"ref_22","first-page":"875","article-title":"D\u00e9placement orthodontique face \u00e0 l\u2019os compact et \u00e0 l\u2019os spongieux. Diff\u00e9rences des r\u00e9actions tissulaires avec deux forces diff\u00e9rentes [Orthodontic movement through compact bone and spongious bone. The difference in tissue reaction with 2 different forces]","volume":"62","author":"Markostamos","year":"1991","journal-title":"Orthod. Fr."},{"key":"ref_23","doi-asserted-by":"crossref","unstructured":"Tsuboi, A., Koizumi, S., Takahashi, M., Hikita, Y., and Yamaguchi, T. (2024). The Role of Mandibular Thickness in Determining Anteroposterior Skeletal Relationships. Dent. J., 13.","DOI":"10.3390\/dj13010003"},{"key":"ref_24","doi-asserted-by":"crossref","unstructured":"Jaramillo-Bedoya, D., Villegas-Giraldo, G., Agudelo-Su\u00e1rez, A.A., and Ram\u00edrez-Ossa, D.M. (2022). A Scoping Review about the Characteristics and Success-Failure Rates of Temporary Anchorage Devices in Orthodontics. Dent. J., 10.","DOI":"10.3390\/dj10050078"},{"key":"ref_25","first-page":"e31476","article-title":"Modern Anchorage Systems in Orthodontics","volume":"14","author":"Umalkar","year":"2022","journal-title":"Cureus"},{"key":"ref_26","first-page":"e58397","article-title":"Protraction of Mandibular Second Molar for Substitution of Adjacent Missing First Molar with a Mini-Implant-Anchored Albert Loop Appliance","volume":"16","author":"Zhou","year":"2024","journal-title":"Cureus"}],"container-title":["Dentistry Journal"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2304-6767\/13\/9\/437\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,9]],"date-time":"2025-10-09T18:47:15Z","timestamp":1760035635000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2304-6767\/13\/9\/437"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,9,22]]},"references-count":26,"journal-issue":{"issue":"9","published-online":{"date-parts":[[2025,9]]}},"alternative-id":["dj13090437"],"URL":"https:\/\/doi.org\/10.3390\/dj13090437","relation":{},"ISSN":["2304-6767"],"issn-type":[{"value":"2304-6767","type":"electronic"}],"subject":[],"published":{"date-parts":[[2025,9,22]]}}}