Three-Dimensional Digital Models for Rating Dental Arch Relationships in Unilateral Cleft Lip and Palate

2013 ◽  
Vol 50 (2) ◽  
pp. 182-186 ◽  
Author(s):  
O. Chawla ◽  
N.E. Atack ◽  
S.A. Deacon ◽  
S.D. Leary ◽  
A.J. Ireland ◽  
...  
Keyword(s):  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Three Dimensional ◽  
Dental Arch ◽  
Digital Models

scholarly journals Dental Arch Width Stability after Quadhelix and Edgewise Treatment in Complete Unilateral Cleft Lip and Palate

2007 ◽  
Vol 77 (6) ◽  
pp. 1067-1072 ◽  
Author(s):  
Weiran Li ◽  
Jiuxiang Lin
Keyword(s):  
Orthodontic Treatment ◽  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Three Dimensional ◽  
Dental Arch ◽  
Arch Width ◽  
Basal Bone ◽  
Transverse Stability ◽  
The Difference ◽  
Dental Arch Width

Abstract Objective: To evaluate the transverse stability of the dental arch in unilateral cleft lip and palate (UCLP) patients after orthodontic treatment with quadhelix and edgewise appliances. Materials and Methods: Twenty repaired complete UCLP patients with posterior crossbites were chosen as the study subjects. All had ceased retention at least 15 months previously. Measurements were carried out directly on the pretreatment, posttreatment, and postretention study models using a three-dimensional dental cast analyzer. The interdental widths were measured for the canines, first premolars, second premolars, first molars, basal bone, and the alveolar arch. Two-way analysis of variance and Fisher's LSD was performed in comparing the difference between intervals. Results: Lower inter-first-premolar width and upper arch widths of each region increased significantly (P < .05) after orthodontic treatment. The expansion was greater in the anterior than the posterior region in the upper arch, and the greatest increase was in the upper first premolar region. The upper arch width decreased after retention, with the decrease of the arch width in the upper canine (1.3 ± 0.8 mm) and first premolar (1.5 ± 0.8 mm) regions being statistically significant. The increased upper arch width in each region and the lower inter-first-premolar width maintained significant expansion after retention. Conclusions: The widths of the dental arch increased significantly after expansion with a quadhelix followed by preadjusted edgewise treatment. Relapse occurred, especially in the upper canine and first premolar region, but most of the treatment effect on the upper arch remained after retention.

Retrospective Evaluation of Treatment Outcome in Japanese Children with Complete Unilateral Cleft Lip and Palate. Part 1: Five-Year-Olds’ Index for Dental Arch Relationships

2007 ◽  
Vol 44 (4) ◽  
pp. 434-443 ◽  
Author(s):  
Akira Suzuki ◽  
Keigo Yoshizaki ◽  
Yasuo Honda ◽  
Masaaki Sasaguri ◽  
Yasutaka Kubota ◽  
...  
Keyword(s):  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Three Dimensional ◽  
University Hospital ◽  
Dental Arch ◽  
Numerical Classification ◽  
Japanese Children ◽  
Lateral Cephalograms ◽  
Dental Arch Width ◽  
Dental Arch Length

Objective: To evaluate the dental arch relationships of Japanese children with complete unilateral cleft lip and palate (UCLP) and to examine the 5-year-olds’ index for its validity. Design: Retrospective study and comparison with previous reports. Subjects: One hundred thirty-six children with complete UCLP who received primary cheiloplasty and palatoplasty in the Kyushu University Hospital from 1966 to 1999. Materials: Dental models taken from children 53 to 67 months of age and their cephalograms. Methods: Study models were assessed using five scores; 1 = excellent, 2 = good, 3 = fair, 4 = poor, and 5 = very poor, in accordance with the 5-year-olds’ index and also evaluated using Huddart and Bodenham's numerical classification. Dental arch widths, three-dimensional maxillary dental arch form, and lateral cephalograms were traced and measured. The outcome by 5-year-olds’ index was compared with Huddart and Bodenham's numerical classification, dental arch dimensions, and cephalometric measurements. Results: Occlusal outcome evaluated by the 5-year-olds’ index was rated 2.95, which was classified as fair. This index rating showed a significant relationship with numerical classification and dental arch length, but not with dental arch width. The index showed a relationship with mandibular form and position, but not with maxillary position. Conclusion: The occlusal outcome of the cases with UCLP was fair as evaluated using the 5-year-olds’ index. The index evaluates the anteroposterior relationship of maxillary/mandibular dental arches but does not evaluate the collapse of maxillary segments.

scholarly journals Three-dimensional dental arch evaluation of children with unilateral complete cleft lip and palate

2016 ◽  
Vol 2 (2) ◽  
Author(s):  
MMM. Falzoni ◽  
PK Jorge ◽  
KV Laskos ◽  
CFC Carrara ◽  
MAA Machado ◽  
...  
Keyword(s):  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Three Dimensional ◽  
Dental Arch

Digital Three-Dimensional Automation of the Modified Huddart and Bodenham Scoring System for Patients with Cleft Lip and Palate

2017 ◽  
Vol 54 (4) ◽  
pp. 481-486 ◽  
Author(s):  
Xinhui Ma ◽  
Catherine Martin ◽  
Grant McIntyre ◽  
Ping Lin ◽  
Peter Mossey
Keyword(s):  
Scoring System ◽  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Least Squares Method ◽  
Three Dimensional ◽  
Automated System ◽  
World Health ◽  
Reference Plane ◽  
Digital Models ◽  
The World

Objective The modified Huddart and Bodenham scoring system assesses maxillary arch constriction and surgical outcomes in cleft lip and palate. This project automates modified Huddart and Bodenham scoring using three-dimensional digital models. Design Development of a novel software tool. Setting The design, construction, development, and testing of the system was carried out at Dundee Dental Hospital. Patients, Participants Subjects with cleft lip and palate. Interventions A plug-in has been developed using an open three-dimensional development platform: Rhinoceros, version 5 ( http://www.rhino3d.co.uk ). Users select cusps on mandibular and maxillary teeth on three-dimensional digital models. A three-dimensional cubic spline generates a mandibular curve, and a best-fit horizontal mandibular reference plane is produced using a least-squares method. Horizontal distances projected from the shortest three-dimensional distances were subsequently calculated between the maxillary cusps and the mandibular curve to calculate the modified Huddart and Bodenham score. Main Outcome Measures Automatic scoring of digital models using the modified Huddart and Bodenham system produces similar results to manual scoring. Results By standardizing outcome assessment in cleft care, multicenter comparisons for audit and research can be simplified, allowing centers throughout the world to upload three-dimensional digital models or intraoral scans of the dental arches for remote scoring. Thereafter, these data can feed back into the global database on orofacial clefting as part of the World Health Organization's international collaborative “Global Burden of Disease” research project for craniofacial anomalies. Conclusions The automated system facilitates quicker and more reliable outcome assessments by minimizing human errors.

scholarly journals The Assessment of 3D Digital Models Using GOSLON Yardstick Index: Exploring Confounding Factors Responsible for Unfavourable Treatment Outcome in Multi-Population Children With UCLP

2021 ◽  
Vol 9 ◽  
Author(s):  
Sanjida Haque ◽  
Mohd Fadhli Khamis ◽  
Mohammad Khursheed Alam ◽  
Amir Wan Muhamad Wan Ahmad
Keyword(s):  
Family History ◽  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Dental Arch ◽  
Kappa Statistics ◽  
Class Iii ◽  
Digital Models ◽  
History Of ◽  
Bangladeshi Population ◽  
3D Digital Models

To evaluate dental arch relationship (DAR) using GOSLON Yardstick and also to explore the association between multiple factors (age, gender, UCLP types, UCLP side, Family history of cleft, family history of Class III malocclusion, techniques of cheiloplasty, techniques of palatoplasty) and DAR in children unilateral cleft lip and palate (UCLP) in different populations. Two hundred fifty-five laser scanned 3D digital models (LS3DM) of UCLP children (5–12 years) from Malaysia, Bangladesh, and Pakistan were included. The intra- and inter-examiner agreements were evaluated by kappa statistics, to compare the GOSLON mean score between the populations and to explore the responsible factors that affect DAR, one way ANOVA, and crude logistic regression analysis was used, respectively. The mean GOSLON score was 2.97; 3.40 and 3.09 in Malaysia, Bangladesh, and Pakistan, respectively. Twenty seven, 40, and 30 subjects were in unfavourable (category rating 4 and 5) groups in Malaysia, Bangladesh, and Pakistan, respectively. A significant association was found between techniques of palatoplasty (p = 0.03; p = 0.04 and p = 0.04 in Malaysia, Bangladesh, and Pakistan, respectively) and unfavourable DAR. Different cheiloplasty techniques (p = 0.04) and gender (p = 0.03) also exhibited noteworthy associations with unfavourable DAR in the Bangladeshi population. Bardach techniques of palatoplasty were significantly associated with unfavourable DAR in all three populations. Moreover, male UCLP and modified Millard techniques of cheiloplasty were also associated with unfavourable DAR in the Bangladeshi population.

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