Maxillary Protraction Therapy in Class III Patients With and Without Cleft Lip and Palate: An Interim Report of a Prospective Comparative Study

2020 ◽  
pp. 105566562095405
Author(s):  
Yifan Lin ◽  
Zhen Fu ◽  
Runzhi Guo ◽  
Lian Ma ◽  
Weiran Li
Keyword(s):  
Treatment Duration ◽  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Controlled Clinical Trial ◽  
Class Iii ◽  
Lower Incisor ◽  
Maxillary Protraction ◽  
Average Treatment ◽  
Significant Difference ◽  
Before And After

Objective: To investigate and compare the effects of maxillary protraction therapy on Class III patients with unilateral cleft lip and palate (UCLP) and Class III patients with noncleft. Design: Prospective controlled clinical trial. Patients: Twenty-six Class III patients with UCLP (mean age: 10.32 ± 1.29 years) and 26 Class III patients with noncleft (mean age: 9.82 ± 1.03 years) were included and treated with maxillary protraction therapy. Interventions: Maxillary protraction therapy was performed with an intraoral Hyrax appliance and extraoral facemask. Cone beam computed tomography scans were taken before and after treatment. Pretreatment skeletal and dental characteristics and treatment changes were analyzed and compared. Results: The average treatment duration was 18.44 ± 4.16 months in the UCLP group, which was substantially longer than the 12.46 ± 4.03-month average treatment duration in the noncleft group ( P < .001). No significant difference was found in the maxillary changes (length, advancement of point A, and SNA angle) and improvement of intermaxillary relationship (ANB angle) between the 2 groups. The UCLP group had 1.40° more mandibular clockwise rotation ( P = .034). Regarding dental changes, the UCLP group had more upper incisor proclination ( P = .006) and less lower incisor retroclination ( P = .023). Conclusions: Approximately extended maxillary protraction therapy in patients with UCLP could be as effective as in patients with noncleft. Further study is required to follow patients until completion of growth to elucidate the long-term stability of the treatment.

Skeletal Response to Maxillary Protraction in Patients with Cleft Lip and Palate before Age 10 Years

1994 ◽  
Vol 31 (4) ◽  
pp. 295-308 ◽  
Author(s):  
Rolf S. Tindlund
Keyword(s):  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Poor Response ◽  
Mixed Dentition ◽  
Forward Movement ◽  
Maxillary Protraction ◽  
Face Height ◽  
Lateral Cephalograms ◽  
Before And After ◽  
Maxillary Dentition

Over the last 15 years, cleft lip and palate (CLP) patients with maxillary deficiency in the care of the Bergen CLP Team have received interceptive orthopedic treatment to correct anterior and posterior crossbites during the deciduous and mixed dentition periods. The present study comprises 72 subjects of various cleft types with anterior crossbite, treated to an acceptable positive overjet by maxillary protraction using a facial mask (Delaire). Lateral cephalograms were taken immediately before and after the active treatment periods. Individuals exhibiting a favorable (fair) skeletal response to the protraction were compared with those who revealed little, (poor) skeletal response. Two cephalometric variables were chosen for the evaluation of the sagittal skeletal treatment changes: (1) the sagittal maxillomandibular change (change of angle ss-n-sm [ANB]); and (2) the forward movement of the maxilla (change of distance NSP-maxp), where maxp (maxillary point) represents the anterior contour of maxilla and NSP is the perpendicular to the naslon-sella-line (NSL) through sella. A numerical change greater than or equal to the value 1.5 (degrees or mm, respectively) was classified as fair versus poor response revealing a change less than 1.5. Fair-response (favorable response) of sagittal maxillomandibular change was found in 63 % of the cases (mean increase of angle ANB was 3.3 degrees), more often when protraction started early. The length of maxilla was increased, the skeletal maxilla was moved forward 1.8 mm, the upper dentition advanced 3.6 mm, the occlusal line was clockwise rotated, and the anterior face height was increased. Similarly, fair-response of forward movement of maxilla was found in 44% of the cases (mean increase of distance NSP-maxp was 2.4 mm), more often when protraction was started early and after long treatment duration. The maxillary prognathism increased 1.8 degrees, the angle ANB increased 3 degrees, the length of maxilla increased 1.5 mm, and the upper dentition was advanced 3.7 mm. The anterior face height increased with counterclockwise rotation of the nasal line, whereas the occlusal line was clockwise rotated. A paired fair-response of both skeletal maxillomandibular change and skeletal forward movement of maxilla was found in 35% of the cases. During protraction the mean increase of maxillary prognathism was 2.1 degrees, the maxilla moved forward 3.1 mm, the maxillary dentition advanced 4.3 mm, the maxillary length increased 1.9 mm, the ANB angle increased 3.7 degrees, and the lower anterior facial height increased 3.4 mm.

scholarly journals Bone-anchored maxillary protraction in patients with unilateral cleft lip and palate:

2020 ◽  
Vol 90 (4) ◽  
pp. 539-547 ◽  
Author(s):  
Eman H. Elabbassy ◽  
Noha E. Sabet ◽  
Islam T. Hassan ◽  
Dina H. Elghoul ◽  
Marwa A. Elkassaby
Keyword(s):  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Three Dimensions ◽  
Class Iii ◽  
Maxillary Expansion ◽  
Forward Movement ◽  
Maxillary Protraction ◽  
Computed Tomography Images ◽  
Group I ◽  
Effective Treatment Modality

ABSTRACT Objectives To assess the effectiveness of bone-anchored maxillary protraction (BAMP) in patients with unilateral cleft lip and palate (UCLP) and whether it was enhanced when preceded by maxillary expansion. Materials and Methods The sample consisted of 28 growing children (9–13 years old) with UCLP and Class III malocclusion. They were divided into two equal groups. In group I, patients were treated with BAMP not preceded by maxillary expansion. In group II, patients were treated with BAMP preceded by maxillary expansion. To assess treatment changes in three dimensions, Cone-beam computed tomography images were taken 1 week after surgical placement of the miniplates (T1) and after 9 months of treatment (T2). Results BAMP produced forward movement of the maxilla in both groups (3.17 mm) and (3.37 mm) respectively, without significant differences between the two groups except for clockwise rotation of the palatal plane in group I (1.60). Conclusions BAMP is an effective treatment modality for correcting midface deficiency in patients with UCLP whether or not maxillary expansion was carried out.

Attitude of the Canine in Secondary Bone-Grafted and Nongrafted Patients with Cleft Lip and Palate

2005 ◽  
Vol 42 (6) ◽  
pp. 679-686 ◽  
Author(s):  
Enkhtuvshin Gereltzul ◽  
Yoshiyuki Baba ◽  
Kimie Ohyama
Keyword(s):  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Panoramic Radiography ◽  
Control Groups ◽  
Significant Difference ◽  
Before And After ◽  
Group 2 ◽  
Two Stages ◽  
And Control ◽  
Group 1

Objective To investigate the eruption pattern of the cleft-side canine regarding its pre-eruption position relative to the cleft in bone-grafted (BG) and nongrafted (NonBG) patients with cleft lip and palate. Methods Fifty-three patients with cleft lip and palate (21 BG, 32 NonBG) were examined by panoramic radiography and posteroanterior cephalography taken before and after canine eruption. Subjects were categorized into BG, NonBG, and control groups. Canines at the pre-eruption stage were categorized as close to (group 1) or distant from (group 2) the cleft area. The canine angle and its change between the two stages were evaluated. Results No significant differences were noted between the initial canine angle of the BG and NonBG groups. Although canines in the BG group erupted without a significant change in angle, the canine angle increased significantly (p < .0001) in the NonBG and control groups. In group 1, a greater change in canine angle was noted in the NonBG (p < .05) and control (p < .01) groups than in the BG group. In group 2, no significant difference was noted among the three groups. Conclusions In BG patients, a canine located near the cleft appears to erupt at the same angle as it had before grafting. However, in NonBG patients, it erupts more vertically, guided by cortical bone. For canines distant from the cleft area, there is no significant difference in the change in angulation between NonBG and BG patients.

Effect of Infant Orthopedics on Facial Appearance of Toddlers with Complete Unilateral Cleft Lip and Palate (Dutchcleft)

2008 ◽  
Vol 45 (4) ◽  
pp. 407-413 ◽  
Author(s):  
Catharina A. M. Bongaarts ◽  
Birte Prahl-Andersen ◽  
Ewald M. Bronkhorst ◽  
Paul H. M. Spauwen ◽  
Jan W. Mulder ◽  
...  
Keyword(s):  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Controlled Clinical Trial ◽  
Minor Effect ◽  
Facial Appearance ◽  
Surgical Closure ◽  
Significant Difference ◽  
Full Face ◽  
Infant Orthopedics ◽  
Positive Effect

Objective: To evaluate the effect of infant orthopedics (IO) on facial appearance of 54 patients with unilateral cleft lip and palate (UCLP), aged 4 and 6 years. Design: Prospective two-arm randomized controlled clinical trial in three Cleft Palate Centers in the Netherlands (Dutchcleft-trial). Interventions: Patients were divided randomly into two groups. Half of the patients (IO+) had a plate until surgical closure of the soft palate at the age of ± 52 weeks; the other half (IO−) received no intervention. Main Outcome Measures: Facial appearance at 4 and 6 years of age assessed on full face photographs and photographs showing only nose and mouth. Ratings were performed on a VAS-scale by professionals and laymen. Results: At 4 years of age the full face pictures of IO+ children were scored to be more attractive than those of IO− children. However, this difference had disappeared at 6 years of age. At the age of 6, only professionals saw a significant difference on nasolabial photographs between IO+ and IO−. Regression analysis showed a minor effect of occlusion, lip revision, or type of nose reconstruction on the esthetic results. Conclusions: IO had a positive effect on full facial appearance of UCLP children at the age of 4 years, but at the age of 6, only professionals saw a positive effect of IO on the nasolabial photographs. This is irrelevant for UCLP patients since they deal with laymen in their daily life.

Craniofacial Morphology of Dutch Patients with Bilateral Cleft Lip and Palate and Noncleft Controls at the Age of 15 Years

2008 ◽  
Vol 45 (6) ◽  
pp. 661-666 ◽  
Author(s):  
Geer M. van den Dungen ◽  
Edwin M. Ongkosuwito ◽  
Irene H. A. Aartman ◽  
Birte Prahl-Andersen
Keyword(s):  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Pearson Correlation ◽  
Correlation Coefficients ◽  
Craniofacial Morphology ◽  
Control Group ◽  
Class Iii ◽  
Cross Sectional ◽  
Significant Difference ◽  
Bilateral Cleft Lip

Objective: Comparison of craniofacial morphology in bilateral cleft lip and palate patients to that of a noncleft control group at the age of 15 years. Design: A cross-sectional study of cephalometric data. Subjects and Methods: Cephalometric records of 41 consecutive patients (32 boys and 9 girls) with nonsyndromic complete bilateral cleft lip and palate born between 1973 and 1987. The patients were treated by the cleft teams of the Erasmus Medical Centre in Rotterdam and the VU University Amsterdam. The control group of normal Dutch subjects was followed in the Nijmegen Growth Study. From this population, mean cephalometric data were used. Differences in cephalometric measurements and other variables were calculated between the bilateral cleft lip and palate group and the control group. Results: Independent-sample t tests indicated that there was a statistically significant difference between the mean of the cephalometric values of the bilateral cleft lip and palate patients and the control group with respect to all cephalometric variables. Pearson correlation coefficients calculated between angle ANB and the number of operators, number of surgical procedures before 15 years of age, and the year of birth were not significant. Conclusions: Bilateral cleft lip and palate patients treated in the Amsterdam and Rotterdam cleft centers differed significantly from the control group in all measurements. A Class III development due to a less forward positioned maxilla was observed. The vertical measurements indicated a more divergent growth pattern in bilateral cleft lip and palate patients (Ans-Me/N-Me, GoGn-SN, and SN-FFH).

scholarly journals Immediate and late follow-up effects of class III early correction in cleft lip and palate patients treated with maxillary protraction

2020 ◽  
Vol 49 ◽  
Author(s):  
Carolina Mazon MIRANDA ◽  
Rodrigo Matos de SOUZA ◽  
Giovana Cherubini VENEZIAN ◽  
Cristina FRANZINI ◽  
William CUSTODIO
Keyword(s):  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Class Iii ◽  
Maxillary Expansion ◽  
Maxillary Protraction ◽  
Chi Squared ◽  
Skeletal Pattern ◽  
Pre Treatment ◽  
The Stability

Abstract Introduction There is no consensus about the immediate and latte follow-up effects of maxillary protraction in cleft lip and palate patients. Objective To evaluate the stability of Class III early treatment in cleft lip and palate patients through maxillary expansion and protraction. Material and method The sample consists in three lateral cephalometric radiographs of 28 patients (mean pre-treatment age of 6.7±1.8 years) who presented cleft lip and palate and were treated with maxillary expansion and Petit facial mask. The angular (SNA, SNB, ANB, SN.GoGn, FMA, Z Angle) and linear (overjet, Co-A, Co-Gn, Nperp-A, Nperp-Pg, AO-BO) cephalometric measures were evaluated through the Dolphin® software, in three moments: T0 (initial), T1 (after treatment), and T2 (follow-up). Data were submitted to the analysis of variance (ANOVA) and Tukey-Kramer test. The correlation between cephalometric measures and patient’s age was determined by Pearson’s chi-squared test. Result The SNA, ANB, and AO-BO measures increased considerably (p<0.05), and they did not present any differences compared to the initial ones after the follow-up time. The overjet measure increased (p<0.05) after treatment and, even with its decrease at the follow-up time, it was still higher than at the beginning (p<0.05). The Z angle showed improvement with treatment and remained stable at the follow-up time. Conclusion After treatment (maxillary expansion associated with protraction), there was a skeletal pattern improvement. During the follow-up period, those alterations decreased to a measure close to the beginning. There was an improvement in the dental pattern and facial profile that continued in the follow-up period.

scholarly journals Long Term Evaluation Of Maxillary Growth After ‘The Non Denuded Palatoplasty’ Technique

2019 ◽  
Vol 5 (2) ◽  
pp. 203-210
Author(s):  
Prasetyanugraheni Kreshanti ◽  
Siti Handayani ◽  
Maulina Rachmasari ◽  
Julieta Pancawati ◽  
Amila Jeni Susanto ◽  
...  
Keyword(s):  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Small Sample Size ◽  
Small Sample ◽  
Wound Contraction ◽  
Class Iii ◽  
Significant Difference ◽  
Term Evaluation ◽  
Growth Evaluation ◽  
Maxillary Growth

Background : Conventional Two Flap Palatoplasty technique will produce lateral defects without any periosteal coverage. These denuded lateral defects are prone to contamination and infection. These will result in wound contraction, scar formation and maxillary growth impairment. In 2011, we studied “The Non Denuded Palatoplasty” technique. This technique precipitated the epithelialization process of the lateral defects. Faster epithelialization is expected to decrease wound contraction and good maxillary growth. Method : This is a case control study to compare the maxillary growth of 2 groups consists of unilateral cleft lip and palate patients repaired with “The Non Denuded Palatoplasty” technique and Conventional Two Flap Palatoplasty. The outcome will be evaluated from cephalometry and the dental cast for each patient is evaluated using GOSLON YARDSTICK method. Data will be analyzed using SPSS version 20. Result : A total of 4 patients in The Non Denuded Palatoplasty group and 10 in the Conventional Two Flap Palatoplasty. The cephalometric SNA, SNB and ANB point showed Class III skeletal jaw relationship or deficient maxilla. Meanwhile the GOSLON yardstick type III are the most common GOSLON on both group with good inter-ratter reliability (p=0.839) based on Mann Whitney test. In these study, there was no correlation between cephalometric variables with GOSLON score. Conclusion: Our results showed that modification (The Non Denuded Palatoplasty) technique made no statistically significant difference to the maxillary growth. However this study has several limitations, one of which being the small sample size due to family, social and other factors that are beyond the control of the investigating team. Also the evaluation was conducted in patients aged 7-9 years, hence the result of this study is not the final outcome. Keywords: maxillary growth evaluation, cephalometry, Goslon Yardstick, two flap palatoplasty

Short- and Long-Term Effects of Late Maxillary Advancement With the Liou-Alt-RAMEC Protocol in Unilateral Cleft Lip and Palate

2018 ◽  
Vol 56 (2) ◽  
pp. 159-167 ◽  
Author(s):  
Maria Costanza Meazzini ◽  
Laura B. Zappia ◽  
Chiara Tortora ◽  
Luca Autelitano ◽  
Roberto Tintinelli
Keyword(s):  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Long Term Results ◽  
Control Group ◽  
Class Iii ◽  
Maxillary Protraction ◽  
Long Term Follow Up ◽  
Short And Long Term

Objective: The objective of this retrospective longitudinal study was to evaluate short- and long-term results of the application of the Liou Alt-RAMEC (alternate rapid maxillary expansion and constriction) technique, a late orthopedic maxillary protraction technique, with intraoral anchorage, in patients with cleft. Materials and Methods: Twenty-six patients with unilateral cleft lip and palate (UCLP) were consecutively treated with the Alt-RAMEC technique. The average age of the patients was 11.7 years (10.3-13.2 years) before protraction and 18.3 years (17.4-21.1 years) at long-term follow-up. A sample of nontreated patients with UCLP was used as a control group. It was matched for sex, skeletal class III, and age (11.3 years). The control sample had records at the end of growth (18.7 years). Results: The sagittal advancement of A-point, after the application of the technique, was 5.7 (2.17) mm. Some mandibular dentoalveolar and positional adaptation was noted. The position of the maxilla was stable in the long term. On the other hand, the UCLP control group showed hardly any growth at the maxillary level during the long-term follow-up period. Conclusion: Our results showed that the Alt-RAMEC technique, performed at the correct time, with a double-hinged expander, followed by class III spring or elastic traction, 24 hours per day, allows for satisfactory maxillary protraction, with, at this stage, apparently stable long-term results. Nevertheless, as only 50% of the patients had long-term follow-up data, we are still unable to predict the percentage of patients which will not eventually need orthognathic surgery.

Dentoskeletal Effects of Maxillary Protraction in Cleft Patients with Repetitive Weekly Protocol of Alternate Rapid Maxillary Expansions and Constrictions

2009 ◽  
Vol 46 (4) ◽  
pp. 391-398 ◽  
Author(s):  
Gustavoda Luz Vieira ◽  
Luciane Macedo de Menezes ◽  
Eduardo Martinelli S. de Lima ◽  
Susana Rizzatto
Keyword(s):  
Repeated Measures ◽  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Covariance Structure ◽  
Face Mask ◽  
Rapid Maxillary Expansion ◽  
Maxillary Expansion ◽  
Maxillary Protraction ◽  
Significant Difference ◽  
Group 2

Objective: To evaluate the amount of maxillary protraction with face mask in complete unilateral cleft lip and palate patients submitted to two distinct rapid maxillary expansion (RME) protocols. Material and Methods: The sample consisted of 20 individuals (nine boys and 11 girls; mean age of 10.4 ± 2.62 years) with unilateral complete cleft lip and palate who had a constricted maxilla in the vertical and transverse dimensions. Ten patients underwent 1 week of RME with screw activation of one complete turn per day, followed by 23 weeks of maxillary protraction (group 1). The other 10 patients underwent 7 weeks of alternate rapid maxillary expansion and constriction, with one complete turn per day, followed by 17 weeks of maxillary protraction (group 2); both groups underwent a total of 6 months of treatment. Cephalometric measurements were taken at different times: pretreatment (T1), soon after RME (T2), and after 6 months of treatment (T3). Each measurement was analyzed with mixed models for repeated measures, and the covariance structure chosen was compound symmetry. Results: The maxilla displaced slightly forward and downward with a counterclockwise rotation; the mandible rotated downward and backward, resulting in an increase in anterior facial height; the sagittal maxillomandibular relationship was improved; the maxillary molars and incisors were protruded and extruded; and the mandibular incisors were retroclined. Conclusion: There was no significant difference between the groups in evaluation time.

scholarly journals Mandibular and glenoid fossa changes after bone-anchored maxillary protraction therapy in patients with UCLP: A 3-D preliminary assessment

2016 ◽  
Vol 87 (3) ◽  
pp. 423-431 ◽  
Author(s):  
Marilia Yatabe ◽  
Daniela Garib ◽  
Renato Faco ◽  
Hugo de Clerck ◽  
Bernardo Souki ◽  
...  
Keyword(s):  
Multiple Testing ◽  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Three Dimensional ◽  
T Test ◽  
Glenoid Fossa ◽  
Class Iii ◽  
Lateral Direction ◽  
Maxillary Protraction ◽  
Gonial Angle

ABSTRACT Objective: To assess mandibular and glenoid fossa (GF) changes after bone-anchored maxillary protraction (BAMP) therapy in patients with unilateral complete cleft lip and palate (UCLP). Materials and Methods: The cleft group (CG) comprised 19 patients with (mean initial age of 11.8 years). The noncleft group (NCG) comprised 24 patients without clefts (mean initial age of 11.7 years). Both groups had Class III malocclusion and were treated with BAMP therapy for 18 and 12 months, respectively. Cone-beam computed tomography (CBCT) exams were performed before and after treatment and superimposed on the anterior cranial fossa (ACF). Mandibular rotations and three-dimensional linear displacements of the mandible and GF were quantified. A t-test corrected for multiple testing (Holm-Bonferroni method) and a paired t-test were used to compare, respectively, the CG and NCG and cleft vs noncleft sides (P &lt; .05). Results: Immediately after active treatment, the GF was displaced posteriorly and laterally in both groups relative to the ACF. The overall GF changes in the CG were significantly smaller than in the NCG. Condylar displacement was similar in both groups, following a posterior and lateral direction. The gonial angle was displaced similarly posteriorly, laterally, and inferiorly in both groups. The intercondylar line rotated in opposite directions in the CG and NCG groups. In the CG, most changes of the GF and mandible were symmetrical. Conclusions: Overall GF and mandibular changes after BAMP therapy were similar in patients with and without clefts. The exception was the posterior remodeling of the GF that was slightly smaller in patients with UCLP.

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