Publications
Sorry, no publications matched your criteria.
Afrand, M; Oh, H; Flores-Mir, C; Lagravere-Vich, M
Growth changes in the anterior and middle cranial bases as assessed through cone-beam computed tomography in adolescents. Journal Article
In: Am J Orthod Dentofacial Orthop, vol. 151, no. 2, pp. 342-350, 2017.
@article{Afrand2017b,
title = {Growth changes in the anterior and middle cranial bases as assessed through cone-beam computed tomography in adolescents.},
author = {M Afrand and H Oh and C Flores-Mir and M Lagravere-Vich},
url = {https://www.sciencedirect.com/science/article/pii/S0889540616307405},
doi = {10.1016/j.ajodo.2016.02.032},
year = {2017},
date = {2017-02-00},
journal = {Am J Orthod Dentofacial Orthop},
volume = {151},
number = {2},
pages = {342-350},
abstract = {Initially, cone-beam computed tomography images from dry skulls were used to 3 dimensionallyevaluate intrarater and interrater reliabilities and accuracy of selected 3-dimensional landmarks located in theanterior and middle cranial bases. Thereafter, dimensional changes of the anterior and middle cranial baseswith growth were evaluated by using the previously selected landmarks.Methods:Cone-beam computed to-mography images of 10 dry skulls were used to identify useful landmarks from different areas of the anteriorand middle cranial bases based on their reliability and accuracy. These selected landmarks were identified inthe images of an already available sample of adolescents (n560) taken at 2 time points (19 months apart)to assess dimensional changes with growth.Results:The majority of the proposed 3-dimensional landmarkswith the exception of the lesser wing of the sphenoid showed acceptable intrarater and interrater reliabilities.The distances measured between foramina and canals in the transverse dimension showed evidence ofincreases in size. However, the mean amounts of increase in these transverse distances were equal to orless than 1.05 mm (from 1.1% to 4.1%). No change was observed between the right and left anterior andposterior clinoid processes. The vertical dimensions showed evidence of some changes, but these werewithin 2% of the original distances.Conclusions:In this adolescent sample, minor growth-related changeswere observed in the anterior and middle cranial bases. The midsagittal area of the anterior cranial base(foramen caecum to presphenoid) was stable. The right and left anterior and posterior clinoid processes canbe used for transverse superimposition. (Am J Orthod Dentofacial Orthop 2017;151:342-50)},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Initially, cone-beam computed tomography images from dry skulls were used to 3 dimensionallyevaluate intrarater and interrater reliabilities and accuracy of selected 3-dimensional landmarks located in theanterior and middle cranial bases. Thereafter, dimensional changes of the anterior and middle cranial baseswith growth were evaluated by using the previously selected landmarks.Methods:Cone-beam computed to-mography images of 10 dry skulls were used to identify useful landmarks from different areas of the anteriorand middle cranial bases based on their reliability and accuracy. These selected landmarks were identified inthe images of an already available sample of adolescents (n560) taken at 2 time points (19 months apart)to assess dimensional changes with growth.Results:The majority of the proposed 3-dimensional landmarkswith the exception of the lesser wing of the sphenoid showed acceptable intrarater and interrater reliabilities.The distances measured between foramina and canals in the transverse dimension showed evidence ofincreases in size. However, the mean amounts of increase in these transverse distances were equal to orless than 1.05 mm (from 1.1% to 4.1%). No change was observed between the right and left anterior andposterior clinoid processes. The vertical dimensions showed evidence of some changes, but these werewithin 2% of the original distances.Conclusions:In this adolescent sample, minor growth-related changeswere observed in the anterior and middle cranial bases. The midsagittal area of the anterior cranial base(foramen caecum to presphenoid) was stable. The right and left anterior and posterior clinoid processes canbe used for transverse superimposition. (Am J Orthod Dentofacial Orthop 2017;151:342-50)
Oh, H; Baumrind, S; Dugoni, S; Boero, R; Aubert, M; Boyd, R
A retrospective study of Class II mixed-dentition treatment. Journal Article
In: Angle Orthodontist, vol. 87, no. 1, pp. 56-67, 2017.
@article{Oh2017,
title = {A retrospective study of Class II mixed-dentition treatment. },
author = {H Oh and S Baumrind and S Dugoni and R Boero and M Aubert and R Boyd},
url = {https://pubmed.ncbi.nlm.nih.gov/27391205/},
doi = {10.2319/012616-72.1},
year = {2017},
date = {2017-01-00},
journal = {Angle Orthodontist},
volume = {87},
number = {1},
pages = {56-67},
abstract = {To consider the effectiveness of early treatment using one mixed-dentition approach to the correction of moderate and severe Class II malocclusions.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
To consider the effectiveness of early treatment using one mixed-dentition approach to the correction of moderate and severe Class II malocclusions.
Oh, H; Ma, N; Feng, P; Kieu, K; Boero, R; Dugoni, S; Aubert, M; Chambers, D
Evaluation of Post-treatment stability following orthodontic treatment in the mixed and permanent dentitions. Journal Article
In: Angle Orthodontist, vol. 86, no. 6, pp. 1010-1018, 2016.
@article{Oh2016b,
title = {Evaluation of Post-treatment stability following orthodontic treatment in the mixed and permanent dentitions.},
author = {H Oh and N Ma and P Feng and K Kieu and R Boero and S Dugoni and M Aubert and D Chambers},
url = {https://pubmed.ncbi.nlm.nih.gov/27214339/},
doi = {10.2319/122315-881.1},
year = {2016},
date = {2016-11-00},
journal = {Angle Orthodontist},
volume = {86},
number = {6},
pages = {1010-1018},
abstract = {To investigate posttreatment changes in the maxillary and mandibular arches in patients who underwent orthodontic treatment during the mixed and permanent dentitions.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
To investigate posttreatment changes in the maxillary and mandibular arches in patients who underwent orthodontic treatment during the mixed and permanent dentitions.
Oh, H; Herchold, K; et al,
Orthodontic tooth movement through the maxillary sinus in an adult patient with multiple missing teeth. Journal Article
In: American Journal of Orthodontics & Dentofacial Orthopedics, vol. 146, no. 4, pp. 493-505, 2014.
@article{Oh2014,
title = {Orthodontic tooth movement through the maxillary sinus in an adult patient with multiple missing teeth. },
author = {H Oh and K Herchold and et al},
url = {https://pubmed.ncbi.nlm.nih.gov/25263152/},
doi = {10.1016/j.ajodo.2014.03.025},
year = {2014},
date = {2014-10-00},
journal = {American Journal of Orthodontics & Dentofacial Orthopedics},
volume = {146},
number = {4},
pages = {493-505},
abstract = {This case report describes the successful orthodontic tooth movement through the maxillary sinus in an adult patient. A 41-year-old Asian woman had severe lip protrusion and multiple missing posterior teeth. Her orthodontic treatment included the extraction of 2 teeth, maximum retraction of the incisors using the extraction spaces and the existing spaces from the missing molars, and closure of all remaining spaces. Even though the treatment time was extended because of the anatomic and biologic challenges associated with moving posterior teeth over a long distance through the maxillary sinus, a successful outcome was obtained, with significant bone modeling of the maxillary sinus. The results demonstrate that a carefully selected force system can overcome the anatomic limitations of moving tooth against the cortical bone of the maxillary sinus wall in adult patients.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
This case report describes the successful orthodontic tooth movement through the maxillary sinus in an adult patient. A 41-year-old Asian woman had severe lip protrusion and multiple missing posterior teeth. Her orthodontic treatment included the extraction of 2 teeth, maximum retraction of the incisors using the extraction spaces and the existing spaces from the missing molars, and closure of all remaining spaces. Even though the treatment time was extended because of the anatomic and biologic challenges associated with moving posterior teeth over a long distance through the maxillary sinus, a successful outcome was obtained, with significant bone modeling of the maxillary sinus. The results demonstrate that a carefully selected force system can overcome the anatomic limitations of moving tooth against the cortical bone of the maxillary sinus wall in adult patients.
Xu, T-M; Zhang, X; Oh, HS; Boyd, R; Korn, El; Baumrind, S
A Randomized Clinical Trial (RCT) Comparing Maxillary Molar Anchorage Loss Using Two Retraction Techniques. Journal Article
In: American Journal of Orthodontics & Dentofacial Orthopedics, vol. 138, no. 5, pp. 544-5, 2010.
@article{Xu2010,
title = {A Randomized Clinical Trial (RCT) Comparing Maxillary Molar Anchorage Loss Using Two Retraction Techniques.},
author = {T-M Xu and X Zhang and HS Oh and R Boyd and El Korn and S Baumrind},
url = {https://pubmed.ncbi.nlm.nih.gov/21055588/},
doi = {10.1016/j.ajodo.2009.12.027},
year = {2010},
date = {2010-11-00},
journal = {American Journal of Orthodontics & Dentofacial Orthopedics},
volume = {138},
number = {5},
pages = {544-5},
abstract = {The objective of this pilot randomized clinical trial was to investigate the relative effectiveness of anchorage conservation of en-masse and 2-step retraction techniques during maximum anchorage treatment in patients with Angle Class I and Class II malocclusions.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
The objective of this pilot randomized clinical trial was to investigate the relative effectiveness of anchorage conservation of en-masse and 2-step retraction techniques during maximum anchorage treatment in patients with Angle Class I and Class II malocclusions.
Oh, HS; Korn, EL; Zhang, XY; Liu, Y; Xu, T-M; Boyd, R; Baumrind, S
Correlation between cephalometric and photographic measurements of facial attractiveness in Chinese and U.S. patients at the end of orthodontic treatment. Journal Article
In: American Journal of Orthodontics & Dentofacial Orthopedics, vol. 136, no. 6, pp. e1-14; discussion 762-3, 2009.
@article{Oh2009,
title = {Correlation between cephalometric and photographic measurements of facial attractiveness in Chinese and U.S. patients at the end of orthodontic treatment.},
author = {HS Oh and EL Korn and XY Zhang and Y Liu and T-M Xu and R Boyd and S Baumrind},
url = {https://pubmed.ncbi.nlm.nih.gov/19962590/},
doi = {10.1016/j.ajodo.2009.04.020},
year = {2009},
date = {2009-12-00},
journal = {American Journal of Orthodontics & Dentofacial Orthopedics},
volume = {136},
number = {6},
pages = {e1-14; discussion 762-3},
abstract = {Orthodontists rely on esthetic judgments from facial photographs. Concordance between estimates of facial attractiveness made from lateral cephalograms and those made from clinical photographs has not been determined. We conducted a preliminary examination to correlate clinicians' rankings of facial attractiveness from standardized end-of-treatment facial photographs (Photo Attractiveness Rank) with cephalometric measurements of facial attractiveness made for the same subjects at the same time.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Orthodontists rely on esthetic judgments from facial photographs. Concordance between estimates of facial attractiveness made from lateral cephalograms and those made from clinical photographs has not been determined. We conducted a preliminary examination to correlate clinicians' rankings of facial attractiveness from standardized end-of-treatment facial photographs (Photo Attractiveness Rank) with cephalometric measurements of facial attractiveness made for the same subjects at the same time.
Lui, Y; Korn, EL; Oh, HS; Pearson, H; Xu, T-M; Baumrind, S
Comparison of Chinese and U.S. Orthodontists' Averaged Evaluations of "Facial Attractiveness" from End-of-Treatment Facial Photographs. Journal Article
In: American Journal of Orthodontics & Dentofacial Orthopedics, vol. 135, no. 5, pp. 621-34, 2009.
@article{Liu2009,
title = {Comparison of Chinese and U.S. Orthodontists' Averaged Evaluations of "Facial Attractiveness" from End-of-Treatment Facial Photographs. },
author = {Y Lui and EL Korn and HS Oh and H Pearson and T-M Xu and S Baumrind},
url = {https://pubmed.ncbi.nlm.nih.gov/19409345/},
doi = {10.1016/j.ajodo.2007.04.039},
year = {2009},
date = {2009-05-00},
journal = {American Journal of Orthodontics & Dentofacial Orthopedics},
volume = {135},
number = {5},
pages = {621-34},
abstract = {This study continues our assessment of agreement and disagreement among 25 Chinese and 20 US orthodontists in the ranking for facial attractiveness of end-of-treatment photographs of randomly sampled growing Chinese and white orthodontic patients. The main aims of this article were to (1) measure the overall pattern of agreement between the mean rankings of US and Chinese orthodontists, and (2) measure the strength of agreement between the rankings of the US and Chinese orthodontists for each patient.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
This study continues our assessment of agreement and disagreement among 25 Chinese and 20 US orthodontists in the ranking for facial attractiveness of end-of-treatment photographs of randomly sampled growing Chinese and white orthodontic patients. The main aims of this article were to (1) measure the overall pattern of agreement between the mean rankings of US and Chinese orthodontists, and (2) measure the strength of agreement between the rankings of the US and Chinese orthodontists for each patient.
Xu, T-M; Korn, EL; Liu, Y; Oh, HS; Lee, KH; Baumrind, S
"Facial Attractiveness": Ranking of End-of-Treatment Facial Photographs by Chinese and U.S. Orthodontists. Journal Article
In: American Journal of Orthodontics & Dentofacial Orthopedics, vol. 134, no. 1, pp. 74-84, 2008.
@article{Xu2008,
title = {"Facial Attractiveness": Ranking of End-of-Treatment Facial Photographs by Chinese and U.S. Orthodontists.},
author = {T-M Xu and EL Korn and Y Liu and HS Oh and KH Lee and S Baumrind},
url = {https://pubmed.ncbi.nlm.nih.gov/18617106/},
doi = {10.1016/j.ajodo.2006.08.023},
year = {2008},
date = {2008-07-00},
journal = {American Journal of Orthodontics & Dentofacial Orthopedics},
volume = {134},
number = {1},
pages = {74-84},
abstract = {In this study, we assessed agreement and disagreement among pairs of Chinese and US orthodontists in the ranking for "facial attractiveness" of end-of-treatment photographs of growing Chinese and white orthodontic patients.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
In this study, we assessed agreement and disagreement among pairs of Chinese and US orthodontists in the ranking for "facial attractiveness" of end-of-treatment photographs of growing Chinese and white orthodontic patients.
SK, Lee; YS, Kim; HS, Oh; KH, Yang; EC, Kim; JG, Chi
Prenatal development of the human mandible. Journal Article
In: The Anatomical Record, vol. 263, no. 3, pp. 314-25, 2001.
@article{Lee2001,
title = {Prenatal development of the human mandible. },
author = {Lee SK and Kim YS and Oh HS and Yang KH and Kim EC and Chi JG},
url = {https://pubmed.ncbi.nlm.nih.gov/11455541/},
doi = {10.1002/ar.1110},
year = {2001},
date = {2001-07-01},
journal = {The Anatomical Record},
volume = {263},
number = {3},
pages = {314-25},
abstract = {In an effort to better understand the interrelationship of the growth and development pattern of the mandible and condyle, a sequential growth pattern of human mandibles in 38 embryos and 111 fetuses were examined by serial histological sections and soft X-ray views. The basic growth pattern of the mandibular body and condyle appeared in week 7 of fertilization. Histologically, the embryonal mandible originated from primary intramembranous ossification in the fibrous mesenchymal tissue around the Meckel cartilage. From this initial ossification, the ramifying trabecular bones developed forward, backward and upward, to form the symphysis, mandibular body, and coronoid process, respectively. We named this initial ossification site of embryonal mandible as the mandibular primary growth center (MdPGC). During week 8 of fertilization, the trabecular bone of the mandibular body grew rapidly to form muscular attachments to the masseter, temporalis, and pterygoid muscles. The mandible was then rapidly separated from the Meckel cartilage and formed a condyle blastema at the posterior end of linear mandibular trabeculae. The condyle blastema, attached to the upper part of pterygoid muscle, grew backward and upward and concurrent endochondral ossification resulted in the formation of the condyle. From week 14 of fertilization, the growth of conical structure of condyle became apparent on histological and radiological examinations. The mandibular body showed a conspicuous radiating trabecular growth pattern centered at the MdPGC, located around the apical area of deciduous first molar. The condyle growth showed characteristic conical structure and abundant hematopoietic tissue in the marrow. The growth of the proximal end of condyle was also approximated to the MdPGC on radiograms. Taken together, we hypothesized that the MdPGC has an important morphogenetic affect for the development of the human mandible, providing a growth center for the trabecular bone of mandibular body and also indicating the initial growth of endochondral ossification of the condyle.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
In an effort to better understand the interrelationship of the growth and development pattern of the mandible and condyle, a sequential growth pattern of human mandibles in 38 embryos and 111 fetuses were examined by serial histological sections and soft X-ray views. The basic growth pattern of the mandibular body and condyle appeared in week 7 of fertilization. Histologically, the embryonal mandible originated from primary intramembranous ossification in the fibrous mesenchymal tissue around the Meckel cartilage. From this initial ossification, the ramifying trabecular bones developed forward, backward and upward, to form the symphysis, mandibular body, and coronoid process, respectively. We named this initial ossification site of embryonal mandible as the mandibular primary growth center (MdPGC). During week 8 of fertilization, the trabecular bone of the mandibular body grew rapidly to form muscular attachments to the masseter, temporalis, and pterygoid muscles. The mandible was then rapidly separated from the Meckel cartilage and formed a condyle blastema at the posterior end of linear mandibular trabeculae. The condyle blastema, attached to the upper part of pterygoid muscle, grew backward and upward and concurrent endochondral ossification resulted in the formation of the condyle. From week 14 of fertilization, the growth of conical structure of condyle became apparent on histological and radiological examinations. The mandibular body showed a conspicuous radiating trabecular growth pattern centered at the MdPGC, located around the apical area of deciduous first molar. The condyle growth showed characteristic conical structure and abundant hematopoietic tissue in the marrow. The growth of the proximal end of condyle was also approximated to the MdPGC on radiograms. Taken together, we hypothesized that the MdPGC has an important morphogenetic affect for the development of the human mandible, providing a growth center for the trabecular bone of mandibular body and also indicating the initial growth of endochondral ossification of the condyle.
Garnett, Bella Shen; Mahood, Kimberly; Nguyen, Mai; Al-Khateeb, Aliaa; Liu, Siqi; Boyd, Robert; Oh, Heesoo
Cephalometric comparison of anterior openbite tx using clear aligners and fixed appliances Journal Article Forthcoming
In: Angle Orthodontist, Forthcoming.
@article{Garnett,
title = {Cephalometric comparison of anterior openbite tx using clear aligners and fixed appliances},
author = {Bella Shen Garnett and Kimberly Mahood and Mai Nguyen and Aliaa Al-Khateeb and Siqi Liu and Robert Boyd and Heesoo Oh},
doi = {10.2319/010418-4.1},
journal = {Angle Orthodontist},
abstract = {Objectives: To compare fixed appliances and clear aligner therapy in correcting anterior open biteand in controlling the vertical dimension in adult patients with hyperdivergent skeletal patterns.
Materials and Methods: In this retrospective study, two treatment groups of adult (_18 years old)hyperdivergent patients (mandibular plane angles of _388) with anterior open bites were included:17 fixed appliance patients and 36 clear aligner patients. Thirteen cephalometric measurementsrepresenting the vertical dimension were reported for each group. A two-sample t-test was used toassess differences in changes in mandibular plane angle and overbite between the two treatmentgroups.
Results: There were no statistical differences found in the magnitude of overbite correction and thechanges in any of the cephalometric measurements for vertical control. The clear aligner groupshowed a slightly greater amount of lower incisor extrusion (P . .009). The main mechanism ofopen bite correction was similar between the two treatment groups and was accomplished throughretroclination of the upper and lower incisors while maintaining the vertical position of the upper andlower molars.
Conclusions: Cephalometric comparison of anterior open bite correction and changes in themandibular plane angle associated with use of clear aligners and fixed appliances did notdemonstrate statistically significant differences in adult hyperdivergent patients. (Angle Orthod.0000;00:000–000.)},
keywords = {},
pubstate = {forthcoming},
tppubtype = {article}
}
Objectives: To compare fixed appliances and clear aligner therapy in correcting anterior open biteand in controlling the vertical dimension in adult patients with hyperdivergent skeletal patterns.
Materials and Methods: In this retrospective study, two treatment groups of adult (_18 years old)hyperdivergent patients (mandibular plane angles of _388) with anterior open bites were included:17 fixed appliance patients and 36 clear aligner patients. Thirteen cephalometric measurementsrepresenting the vertical dimension were reported for each group. A two-sample t-test was used toassess differences in changes in mandibular plane angle and overbite between the two treatmentgroups.
Results: There were no statistical differences found in the magnitude of overbite correction and thechanges in any of the cephalometric measurements for vertical control. The clear aligner groupshowed a slightly greater amount of lower incisor extrusion (P . .009). The main mechanism ofopen bite correction was similar between the two treatment groups and was accomplished throughretroclination of the upper and lower incisors while maintaining the vertical position of the upper andlower molars.
Conclusions: Cephalometric comparison of anterior open bite correction and changes in themandibular plane angle associated with use of clear aligners and fixed appliances did notdemonstrate statistically significant differences in adult hyperdivergent patients. (Angle Orthod.0000;00:000–000.)
Materials and Methods: In this retrospective study, two treatment groups of adult (_18 years old)hyperdivergent patients (mandibular plane angles of _388) with anterior open bites were included:17 fixed appliance patients and 36 clear aligner patients. Thirteen cephalometric measurementsrepresenting the vertical dimension were reported for each group. A two-sample t-test was used toassess differences in changes in mandibular plane angle and overbite between the two treatmentgroups.
Results: There were no statistical differences found in the magnitude of overbite correction and thechanges in any of the cephalometric measurements for vertical control. The clear aligner groupshowed a slightly greater amount of lower incisor extrusion (P . .009). The main mechanism ofopen bite correction was similar between the two treatment groups and was accomplished throughretroclination of the upper and lower incisors while maintaining the vertical position of the upper andlower molars.
Conclusions: Cephalometric comparison of anterior open bite correction and changes in themandibular plane angle associated with use of clear aligners and fixed appliances did notdemonstrate statistically significant differences in adult hyperdivergent patients. (Angle Orthod.0000;00:000–000.)
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