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.

Relationship between Cleft Severity and Dentocraniofacial Morphology in Japanese Subjects with Isolated Cleft Palate and Complete Unilateral Cleft Lip and Palate

1993 ◽  
Vol 30 (2) ◽  
pp. 175-181 ◽  
Author(s):  
Akira Suzuki ◽  
Yo Mukai ◽  
Masamichi Ohishi ◽  
Yasuko Miyanoshita ◽  
Hideo Tashiro
Keyword(s):  
Cleft Palate ◽  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Lateral Displacement ◽  
Craniofacial Morphology ◽  
Dental Arch ◽  
Arch Width ◽  
Lateral Cephalograms ◽  
Isolated Cleft Palate ◽  
Dental Arch Width

Relationships between the width of the palatal cleft measured at paIatopIasty and the craniofacial morphology or the occlusal conditions present at approximately 4 years of age were studied in 25 cleft palate (CP) and 39 complete unilateral cleft lip and palate (UCLP) subjects treated at the Dental Clinic of Kyushu University. Posteroanterior cephalograms and dental casts showed that the width of the palatal cleft was significantly correlated with wider upper facial width and posterior dental arch width in UCLP, but not in CP subjects. Cleft width was not significantly correlated with the buccolingual occlusal relationship in either subject type. The anterior occlusal relationship in UCLP was not as good as in CP subjects. On lateral cephalograms, the width of the palatal cleft was significantly correlated with vertical hypoplasia of the upper face in UCLP, but not in CP subjects. The cleft palate width appears to be related to the lateral displacement and the retardation of the downward and forward growth of the nasomaxillary complex in UCLP subjects.

Comparison between the Palatal Configurations in Complete and Incomplete Unilateral Cleft Lip and Palate Infants under 18 Months of Age

2001 ◽  
Vol 38 (1) ◽  
pp. 49-54 ◽  
Author(s):  
Katsuaki Mishima ◽  
Yoshihide Mori ◽  
Toshio Sugahara ◽  
Masayoshi Sakuda
Keyword(s):  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Three Dimensional ◽  
Measuring System ◽  
Posterior Arch ◽  
Orthopedic Treatment ◽  
Arch Width ◽  
Significant Difference ◽  
The Difference ◽  
Arch Forms

Objective The purpose of this study was to examine the three-dimensional characteristics of the palatal configurations in incomplete unilateral cleft lip and palate (UCLP) patients and to determine whether there are differences in the effect of early orthopedic treatment between complete and incomplete UCLP patients. Design Eight infants with incomplete UCLP and 12 infants with complete UCLP, selected at random, wore Hotz plates, and 8 other infants with complete UCLP did not. Palatal impressions were taken of these patients immediately after birth and at 1, 2, 3, 4 (just before cheiloplasty), 6, and 18 months of age (just before palatoplasty). Using our measuring system, the palatal casts were measured and compared three-dimensionally. Results and Conclusions The palate of the incomplete UCLP patients measured immediately after birth, compared with complete UCLP, showed: (1) smaller posterior arch width; (2) sagittal arch length did not differ; (3) incisal point was located more mesially; (4) the gap between the alveolar arch forms of the major and minor segments was smaller; and (5) the curvature of the palatal surface forward the nasal cavity in the minor segment was less. At 18 months of age, the following characteristics could be observed: (1) the difference observed at birth in the posterior arch width between the incomplete and complete UCLP infants vanished; (2) a significant difference in the location of the incisal point was observed only between the incomplete UCLP infants and the complete UCLP infants with a Hotz plate; and (3) the curvature was less in the incomplete UCLP infants than in the complete UCLP infants. Furthermore, the morphological change of the palatal surface was less in the incomplete UCLP infants than in the complete UCLP infants. This suggested that any influence of the Hotz appliance might be less in incomplete UCLP than in complete UCLP.

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.

Dental Arch Relationship in Children with Complete Unilateral Cleft Lip and Palate following Warsaw (One-Stage Repair) and Oslo Protocols

2009 ◽  
Vol 46 (6) ◽  
pp. 648-653 ◽  
Author(s):  
Piotr Fudalej ◽  
Maria Hortis-Dzierzbicka ◽  
Zofia Dudkiewicz ◽  
Gunvor Semb
Keyword(s):  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Weighted Kappa ◽  
Dental Arch ◽  
Kappa Statistics ◽  
Consecutive Series ◽  
One Stage ◽  
Mother And Child ◽  
The Difference ◽  
Dental Arch Relationship

Objective: To compare the dental arch relationship following one-stage repair of unilateral cleft lip and palate (UCLP) in Warsaw with a matched sample of patients treated by the Oslo Cleft Team. Material: Study models of 61 children (mean age, 11.2; SD, 1.7) with a nonsyndromic complete UCLP consecutively treated with one-stage closure of the cleft at 9.2 months (range, 6.0 to 15.8 months; SD, 2.0) by the Warsaw Cleft Team at the Institute of Mother and Child, Poland, were compared with a sample drawn from a consecutive series of patients with UCLP treated by the Oslo Cleft Team and matched for age, gender, and soft tissue band. Methods: The study models were given random numbers to blind their origin. Four examiners rated the dental arch relationship using the GOSLON Yardstick. The strength of agreement of rating was assessed with weighted Kappa statistics. An independent t-test was carried out to compare the GOSLON scores between Warsaw and Oslo samples, and Fisher's exact tests were performed to evaluate the difference of distribution of the GOSLON scores. Results: The intrarater and interrater agreements were high (K ≥ .800). No difference in dental arch relationship between Warsaw and Oslo groups was found (mean GOSLON score  =  2.68 and 2.65 for Warsaw and Oslo samples, respectively). The distribution of the GOSLON grades was similar in both groups. Conclusions: The dental arch relationship following one-stage repair (Warsaw protocol) was comparable with the outcome of the Oslo Cleft Team's protocol.

scholarly journals PENGGUNAAN ANALISIS PONT PADA POPULASI MAHASISWA SUKU MINANG DI FAKULTAS KEDOKTERAN GIGI UNIVERSITAS ANDALAS

2019 ◽  
Vol 1 (2) ◽  
pp. 126-141
Author(s):  
Murniwati Murniwati ◽  
Maya Syafitri
Keyword(s):  
Mean Value ◽  
Dental Arch ◽  
Cross Sectional ◽  
Arch Width ◽  
The Difference ◽  
Cross Sectional Design ◽  
Dental Arch Width ◽  
Different Characteristics ◽  
Cast Analysis ◽  
Dental Cast

Dental cast analysis is one of the important thing in orthodontic treatments. One of the dental cast analysis which is usually used is Pont analysis, proposed in 1909. Pont did his research to a population in French which is Caucasian and stated that his theory needs to be tested to another ethnics to verify the applicability of Pont analysis to that population. On each race, there are some specific physical characteristics such as the form and width of dentition and dental arch. Minang population are Mongolian who has the different characteristics of dentition and dental arch with the Caucasians.The aim of this study is to identify whether Pont analysis is precise to be used to Minang population. Method : Cross-sectional design was used in this study. This study was done to 65 upper dental casts from Minang student at the Faculty of Dentistry Andalas University who met the inclusion criteria. The difference between the measured and the calculated interpremolar and intermolar arch width was tested with paired T test with the significant value of 0.05 (p=0.05). Result : Mean value of interpremolar width was 37.8838 ± 2.29042 mm and intermolar width was 47.6046±3.18780 mm. The result of statistical analysis showed that there is no significant differences of the measured and the calculated interpremolar and intermolar width of Minang Student at Faculty of Dentistry Andalas University (p>0.05). Conclusion : Pont analysis can be used as one of the dental cast analysis in orthodontic diagnosis and treatment planning to Minang population. It is suggested to do a further research to identify lower dental arch form of the Minang population whose upper dental arch width equals to the predicted arch width according to Pont’s formula.

Maxillary Dental Arch Affected by Different Sleep Positions in Unilateral Complete Cleft Lip and Palate Infants

1994 ◽  
Vol 31 (3) ◽  
pp. 179-184 ◽  
Author(s):  
Chiung-Shing Huang ◽  
Hsin-Chung Cheng ◽  
Yu-Ray Chen ◽  
M. Samuel Noordhoff
Keyword(s):  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Longitudinal Change ◽  
Sleep Position ◽  
Dental Arch ◽  
Initial Visit ◽  
Arch Width ◽  
Supine Sleep ◽  
The Relationship ◽  
Maxillary Arch

The development of the dental arch is well designed for adaptive and compensatory growth. In this study, the relationship between the sleep position and dental arch development was Investigated. A group of 42 infants with unilateral complete cleft lip and palate with either prone (16) or supine (26) sleep position were seen in the craniofacial center. All infants were less than 1 month of age at the initial visit. Dental impressions of the maxillary arch were taken at the initial visit and just before cheiloplasty. Ten arch dimensions were measured in each dental cast and the longitudinal change in each dimension was compared between the prone sleep group and the supine sleep group. Statistically significant changes were detected in the growth rate of the following dimensions: intercanine width, intertuberosity width, alveolar cleft width, anterior cleft width, and posterior cleft width. This study indicated that sleep position affected maxillary arch development. Infants sleeping in the prone sleep position tended to have narrower arch width and cleft width.

Influence of Early Hard Palate Closure in Unilateral and Bilateral Cleft Lip and Palate on Maxillary Transverse Growth during the First Four Years of Age

2003 ◽  
Vol 40 (2) ◽  
pp. 126-130 ◽  
Author(s):  
Bernhard Lehner ◽  
Joerg Wiltfang ◽  
Karin Strobel-Schwarthoff ◽  
Michaela Benz ◽  
Ursula Hirschfelder ◽  
...  
Keyword(s):  
Hard Palate ◽  
Primary Closure ◽  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Three Dimensional ◽  
Arch Width ◽  
Significant Difference ◽  
Early Primary ◽  
Delayed Closure ◽  
The University

Objective To evaluate and compare the effects of early primary closure of the hard palate on the anterior and posterior width of the maxillary arch in children with bilateral (BCLP) and unilateral (UCLP) cleft lip and palate during the first 4 years of life. Design A retrospective, mixed-longitudinal study. Setting Cleft Palate Center of the University of Erlangen-Nuremberg. Subjects and Methods The present investigation analyzes longitudinally 42 children with UCLP and 8 children with BCLP between 1996 and 2000 with early simultaneous primary closure of lip and hard palate (4 to 5 months). Palatal arch width was measured on dental casts with a computer-controlled three-dimensional digitizing system, and their growth velocities were calculated from consecutive periods (mean follow-up 39 months). Differences in growth velocities were compared with those of 25 children with UCLP and 15 children with BCLP with delayed closure of hard palate (12 to 14 months). Results and Conclusions There was no significant difference in terms of anterior and posterior maxillary width between early and delayed closure of hard palate within the first 4 years of life.

The Influence of Orthodontic Treatment on the Goslon Score of Unilateral Cleft Lip and Palate Patients

2012 ◽  
Vol 49 (2) ◽  
pp. 215-220 ◽  
Author(s):  
Peter Southall ◽  
Mark Walters ◽  
Steven Singer
Keyword(s):  
Retrospective Study ◽  
Treatment Group ◽  
Surgical Outcome ◽  
Orthodontic Treatment ◽  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Favorable Outcome ◽  
Dental Arch ◽  
Significant Difference ◽  
The Mean

Objective To assess the effect of orthodontic treatment on Goslon Yardstick outcome. Design Retrospective study. Patients A series of 66 consecutive patients born with a complete unilateral left lip and palate. Patients were sorted into a nontreatment group (n = 47) and a treatment group (n = 19). Method Three assessors trained in the use of the Goslon Yardstick ranked the dental arch relationships of study casts taken at 6 and 9 years. Results There was only a fair agreement (κ = .33) between 6- and 9-year Goslon Yardstick scores for the cohort of 66 patients, with a significant (p < .05) difference in the mean score at 6 years (3.17 ± 0.8) and at 9 years (2.88 ± 1.0). Removal of 19 subjects who had orthodontic inventions prior to taking of the 9-year-old study cast improved the agreement to moderate (κ = .52). There was no significant difference (p > .05) in mean scores at 6 and 9 years (3.13 ± 0.9 and 3.17 ± 1.03, respectively). The treatment group exhibited significant differences (p < .001) with mean Goslon Yardstick scores of 3.0 ± 0.9 at 6 and 2.25 ± 0.45 at 9 years. Conclusions The inclusion of patients who had received orthodontic treatment prior to taking of study casts being used for Goslon Yardstick scoring can result in a more favorable outcome. Patients who have received active orthodontic treatment prior to taking of dental casts should be excluded or accounted for in audits to assess primary cleft surgical outcome in patients with a unilateral cleft lip and palate.

scholarly journals Incisor and molar overjet, arch contraction, and molar relationship in the mixed dentition in repaired complete unilateral cleft lip and palate: A qualitative and quantitative appraisal

2017 ◽  
Vol 87 (4) ◽  
pp. 603-609 ◽  
Author(s):  
Suteeta Disthaporn ◽  
Sunjay Suri ◽  
Bruce Ross ◽  
Bryan Tompson ◽  
Diogenes Baena ◽  
...  
Keyword(s):  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Alveolar Bone ◽  
Class Ii ◽  
Mixed Dentition ◽  
Dental Arch ◽  
Kappa Statistics ◽  
Permanent Molar ◽  
Alveolar Bone Grafting ◽  
The Difference

ABSTRACT Objective: To compare the mixed dentition incisor and molar overjet, severity of contraction of the dental arch, and the sagittal molar relationship on the cleft side vs the noncleft side in children with repaired complete unilateral cleft of the lip and palate (UCLP). Materials and Methods: Orthodontic records taken prior to orthodontic preparation for alveolar bone grafting were screened to select study casts from patients with nonsyndromic repaired complete UCLP who did not have mandibular skeletal or dental asymmetry. The study sample comprised dental casts from 74 children aged 8.9 ± 1 years. Standardized digital photographs were acquired at 1:1 magnification. A coordinate system was developed using digital image-processing software (Photoshop CS4 and Adobe Illustrator). Incisor and molar overjet, Angle's classification, and arch contraction were recorded. Descriptive statistics, paired t-tests, and kappa statistics were used to compare the cleft and noncleft sides. Results: A negative overjet of −1 to −5 mm was often present at the incisors, with greater frequency and magnitude on the cleft side. Class II molar relation was more frequent on the cleft side (61.1%) than on the noncleft side (47.2%). Significantly greater contraction of the cleft side deciduous canine and deciduous first molar was noted, while the difference was very minor at the first permanent molar. Conclusions: Cleft side maxillary arch contraction was most severe in the deciduous canine and first deciduous molar region and progressively less severe in the posterior region of the arch. A greater frequency and severity of negative overjet and Class II molar relationship was seen on the cleft side.

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