Abstract:
Objective:This study examined cone-beam computed tomography (CBCT)-derived multiplanar-reconstructed (MPR) cross-sections to clarify the salient characteristics of patients with skeletal class III malocclusion with midface deficiency (MD). Methods:The horizontal and sagittal plane intersection points were identified for middle-third facial analysis in 40 patients in the MD or normal (N) groups. MPR images acquired parallel to each horizontal plane were used for length and angular measurements. Results:A comparison of the MD and N groups revealed significant differences in the zygoma prominence among female patients. The convex zygomatic area in the N group was larger than that in the MD group, and the inferior part of the midface in the N group was smaller than that in the MD group for both male and female patients. A significant difference was observed in the concave middle maxillary area among male patients. Conclusions:This study was conducted to demonstrate the difference between MD and normal face through MPR images derived from CBCT. Male patients in the MD group had a more flattened face than did those in the N group. Female patients in the MD group showed a concave-shaped lower section of the zygoma, which tended to have more severe MD. These findings indicate that orthognathic surgery to improve skeletal discrepancy requires different approaches in male and female patients.
journal_name
Korean J Orthodjournal_title
Korean journal of orthodonticsauthors
Kim B,Lee HC,Kim SH,Kim Y,Son W,Kim SSdoi
10.4041/kjod.2018.48.3.143subject
Has Abstractpub_date
2018-05-01 00:00:00pages
143-152issue
3eissn
2234-7518issn
2005-372Xjournal_volume
48pub_type
杂志文章abstract:OBJECTIVE:The purpose of this study was to evaluate the effectiveness of the use of Reference Ear Plug (REP) during cone-beam computed tomography (CBCT) scan for the generation of lateral cephalograms from CBCT scan data. METHODS:Two CBCT scans were obtained from 33 adults. One CBCT scan was acquired using conventiona...
journal_title:Korean journal of orthodontics
pub_type: 杂志文章
doi:10.4041/kjod.2013.43.2.54
更新日期:2013-04-01 00:00:00
abstract:Objective:This study was performed to investigate the effects of external tooth bleaching with flouridation on the appearance of white spot lesions (WSLs) in vitro. Methods:In total, 125 bracket-bonded bovine incisor enamel blocks with artificial WSLs were randomly divided into a control group and four treatment group...
journal_title:Korean journal of orthodontics
pub_type: 杂志文章
doi:10.4041/kjod.2018.48.6.377
更新日期:2018-11-01 00:00:00
abstract:OBJECTIVE:Different methods have been utilized to prevent enamel demineralization and other complications during orthodontic treatment. However, none of these methods can offer long-lasting and effective prevention of orthodontic complications or interventions after complications occur. Considering the photocatalytic e...
journal_title:Korean journal of orthodontics
pub_type: 杂志文章
doi:10.4041/kjod.2016.46.3.146
更新日期:2016-05-01 00:00:00
abstract::Because of the potential morbidity and complications associated with surgical procedures, limiting the extent of orthognathic surgery is a desire for many orthodontic patients. An eighteen-year-old woman had a severe Class III malocclusion and required bi-maxillary surgery. By changing the patient's maxillary occlusal...
journal_title:Korean journal of orthodontics
pub_type:
doi:10.4041/kjod.2014.44.6.342
更新日期:2014-11-01 00:00:00
abstract::[This corrects the article on p. 3 in vol. 48, PMID: 29291183.]. ...
journal_title:Korean journal of orthodontics
pub_type: 已发布勘误
doi:10.4041/kjod.2019.49.2.137
更新日期:2019-03-01 00:00:00
abstract:OBJECTIVE:Rapid maxillary expansion (RME) is used to expand the maxilla and increase arch perimeter; yet, there are few reports on its effects on the sphenoid bone. With cone-beam computed topography (CBCT), it is possible to visualize sphenoid bone changes. The purpose of this study was to investigate sphenoid bone ch...
journal_title:Korean journal of orthodontics
pub_type: 杂志文章
doi:10.4041/kjod.2016.46.5.269
更新日期:2016-09-01 00:00:00
abstract:Objective:To investigate the cephalometric predictors of the future need for orthognathic surgery in Korean patients with unilateral cleft lip and palate (UCLP) despite long-term use of facemask with miniplate (FMMP). Methods:The sample consisted of 53 UCLP patients treated by a single orthodontist using an identical ...
journal_title:Korean journal of orthodontics
pub_type: 杂志文章
doi:10.4041/kjod.2021.51.1.43
更新日期:2021-01-15 00:00:00
abstract:OBJECTIVE:To evaluate the antimicrobial effect of different frequencies of brushing with fluoride toothpaste on the levels of salivary mutans streptococci and lactobacilli in children undergoing fixed orthodontic treatment. METHODS:The study included 22 patients scheduled for fixed orthodontic therapy distributed betw...
journal_title:Korean journal of orthodontics
pub_type: 杂志文章
doi:10.4041/kjod.2012.42.5.263
更新日期:2012-10-01 00:00:00
abstract::This article describes the orthodontic treatment of a 31-year-old Korean female patient with gummy smile and crowding. The patient showed excessive gingival display in both the anterior and posterior areas and a large difference in gingival heights between the anterior and posterior teeth in the maxilla. To correct th...
journal_title:Korean journal of orthodontics
pub_type:
doi:10.4041/kjod.2013.43.3.147
更新日期:2013-06-01 00:00:00
abstract::When a patient shows severe crowding, premolar extraction should be considered to provide required available space for alignment. If the third molars have already erupted and demonstrate a poor prognosis, third molar extraction and distalization of the posterior dentition can be used instead of premolar extraction to ...
journal_title:Korean journal of orthodontics
pub_type:
doi:10.4041/kjod.2019.49.3.194
更新日期:2019-05-01 00:00:00
abstract::This case report illustrates the successful treatment of a patient with skeletal Class II malocclusion and an unesthetic smile involving excessive gingival display and large buccal corridors. By applying dual buccal interradicular miniscrews, total intrusion of the maxillary dentition along with distalization was indu...
journal_title:Korean journal of orthodontics
pub_type:
doi:10.4041/kjod.2017.47.1.59
更新日期:2017-01-01 00:00:00
abstract::This article describes the orthodontic treatment of a 25-year-old Korean female patient with anterior crowding, including palatally displaced lateral incisors. Her facial profile was satisfactory, but 3.5 mm of maxillary anterior crowding was observed. To correct this crowding, we decided to minimize the use of the co...
journal_title:Korean journal of orthodontics
pub_type:
doi:10.4041/kjod.2013.43.4.201
更新日期:2013-08-01 00:00:00
abstract:OBJECTIVE:The displacement of the hyoid bone (HB) is a critical biomechanical component of the swallowing function. The aim of this study was to evaluate the swallowing-induced vertical and horizontal displacements of the HB in subjects with 2 different magnitudes of skeletal Class III malocclusion, by means of real-ti...
journal_title:Korean journal of orthodontics
pub_type: 杂志文章
doi:10.4041/kjod.2012.42.4.190
更新日期:2012-08-01 00:00:00
abstract::In this report, we describe the successful use of alternate rapid maxillary expansions and constrictions with a hybrid hyrax-mandibular miniplate combination and simultaneous orthodontic treatment for the management of severe Class III malocclusion due to maxillary hypoplasia in an 11-year-old girl. The devices were r...
journal_title:Korean journal of orthodontics
pub_type:
doi:10.4041/kjod.2019.49.5.338
更新日期:2019-09-01 00:00:00
abstract::Moving the mandibular posterior teeth into a severely atrophic edentulous space is a challenge. A carefully designed force-and-moment system that results in bodily protraction of the posterior teeth with balanced bone resorption and apposition is needed in such cases. This report describes the treatment of a 19-year-o...
journal_title:Korean journal of orthodontics
pub_type:
doi:10.4041/kjod.2020.50.2.145
更新日期:2020-03-01 00:00:00
abstract:Objective:The aim of this study was to examine the properties of fiber-reinforced composite and stainless steel twisted retainers for orthodontic retention. Methods:Three different span lengths (5.0, 8.0, and 14.0 mm) of fiber-reinforced composite were investigated. The three fiber-reinforced composite retainer groups...
journal_title:Korean journal of orthodontics
pub_type: 杂志文章
doi:10.4041/kjod.2018.48.2.107
更新日期:2018-03-01 00:00:00
abstract:OBJECTIVE:To investigate the effects of frontal facial type (FFT) and sex on preferred chin projection (CP) in three-dimensional (3D) facial images. METHODS:Six 3D facial images were acquired using a 3D facial scanner (euryprosopic [Eury-FFT], mesoprosopic [Meso-FFT], and leptoprosopic [Lepto-FFT] for each sex). After...
journal_title:Korean journal of orthodontics
pub_type: 杂志文章
doi:10.4041/kjod.2017.47.2.108
更新日期:2017-03-01 00:00:00
abstract:Objective:To investigate the dental phenotypes and treatment modalities (Tx- Mod) in Korean patients with Parry-Romberg syndrome (PRS) using longitudinal data. Methods:The samples consisted of 10 PRS patients, who were treated and/or followed-up at Seoul National University Dental Hospital between 1998 and 2019. Using...
journal_title:Korean journal of orthodontics
pub_type: 杂志文章
doi:10.4041/kjod.2020.50.6.407
更新日期:2020-11-25 00:00:00
abstract::This case report presents the orthodontic treatment of a 25-year-old patient with skeletal Class II and severe maxillary arch crowding, moderate mandibular arch crowding, anterior crossbite, and a missing lower incisor. He was treated with molar distalization using a modified C-palatal plate and temporary anchorage de...
journal_title:Korean journal of orthodontics
pub_type:
doi:10.4041/kjod.2020.50.1.52
更新日期:2020-01-01 00:00:00
abstract:OBJECTIVE:The objective of this study was to analyze the patterns of tooth movements when distalization of mandibular molars using a mini-plate took place. A finite element analysis was applied to analyze patterns of tooth movements. METHODS:The model of the mandible and teeth were used to build a finite element analy...
journal_title:Korean journal of orthodontics
pub_type: 杂志文章
doi:10.4041/kjod.2017.47.5.289
更新日期:2017-09-01 00:00:00
abstract:OBJECTIVE:This study aimed to assess three-dimensional changes in the temporomandibular joint positions and mandibular dimensions after correction of dental factors restricting mandibular growth in patients with Class II division 1 or division 2 malocclusion in the pubertal growth period. METHODS:This prospective clin...
journal_title:Korean journal of orthodontics
pub_type: 杂志文章
doi:10.4041/kjod.2015.45.3.121
更新日期:2015-05-01 00:00:00
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journal_title:Korean journal of orthodontics
pub_type: 杂志文章
doi:10.4041/kjod.2012.42.3.100
更新日期:2012-06-01 00:00:00
abstract:OBJECTIVE:The purpose of this study was to evaluate the clinical efficacy of polymer- and rhodium-coated wires compared to uncoated wires by measuring the frictional forces using self-ligation brackets. METHODS:0.016-inch nickel titanium (NiTi) wires and 0.017 × 0.025-inch stainless steel (SS) wires were used, and the...
journal_title:Korean journal of orthodontics
pub_type: 杂志文章
doi:10.4041/kjod.2014.44.4.157
更新日期:2014-07-01 00:00:00
abstract::The aim of this study was to test the clinical application of an intraoral scanner for serial evaluation of orthodontic tooth movement. The maxillary dentitions of eight patients with fixed orthodontic appliances were scanned using an intraoral scanner at the beginning of treatment (T0), and at 1 month (T1), 2 months ...
journal_title:Korean journal of orthodontics
pub_type: 杂志文章
doi:10.4041/kjod.2018.48.4.262
更新日期:2018-07-01 00:00:00
abstract:OBJECTIVE:Root mobility due to reciprocating movement of the tooth (jiggling) may exacerbate orthodontic root resorption (ORR). "Jiggling" describes mesiodistal or buccolingual movement of the roots of the teeth during orthodontic treatment. In the present study, buccolingual movement is described as "jiggling." We aim...
journal_title:Korean journal of orthodontics
pub_type: 杂志文章
doi:10.4041/kjod.2016.46.4.228
更新日期:2016-07-01 00:00:00
abstract:OBJECTIVE:The aim of this study was to evaluate the facial dimensions of young adult women with a preferred facial appearance and compare the results with those from the general population. METHODS:Twenty-five linear, nine angular, and three area measurements were made and four ratios were calculated using a sample of...
journal_title:Korean journal of orthodontics
pub_type: 杂志文章
doi:10.4041/kjod.2015.45.5.253
更新日期:2015-09-01 00:00:00
abstract::Orthodontic closure of old, edentulous spaces in the mandibular posterior region is a major challenge. In this report, we describe a method of orthodontic closure of edentulous spaces in the mandibular posterior region accelerated by piezoelectric decortication and alveolar ridge expansion. Combined piezosurgical and ...
journal_title:Korean journal of orthodontics
pub_type:
doi:10.4041/kjod.2013.43.6.302
更新日期:2013-12-01 00:00:00
abstract:Objective:The aim of this systematic multiscale analysis was to evaluate the effects of thermoforming on the physical and mechanical properties of thermoplastic materials used to fabricate transparent orthodontic aligners (TOAs). Methods:Specimens were fabricated using four types of thermoplastic materials with differ...
journal_title:Korean journal of orthodontics
pub_type: 杂志文章
doi:10.4041/kjod.2018.48.5.316
更新日期:2018-09-01 00:00:00
abstract:OBJECTIVE:The aims of our study were to verify the validity of the T-Scan III system (Tekscan) as an objective occlusal evaluation tool, and to assess the differences between two occlusal indexes-the peer assessment rating (PAR) index and the American Board of Orthodontics objective grading system (OGS)-by comparing th...
journal_title:Korean journal of orthodontics
pub_type: 杂志文章
doi:10.4041/kjod.2016.46.1.27
更新日期:2016-01-01 00:00:00
abstract:Objective:To evaluate the short-term changes in masticatory muscle activity and mandibular movement patterns after orthognathic surgery in skeletal Class III patients with facial asymmetry. Methods:Twenty-seven skeletal Class III adult patients were divided into two groups based on the degree of facial asymmetry: the ...
journal_title:Korean journal of orthodontics
pub_type: 杂志文章
doi:10.4041/kjod.2019.49.4.254
更新日期:2019-07-01 00:00:00