scholarly journals Cephalometric evaluation of rapid and slow maxillary expansion in patients with BCLP: Secondary data analysis from a randomized clinical trial

2019 ◽  
Vol 89 (4) ◽  
pp. 583-589 ◽  
Author(s):  
Leonardo Gregório ◽  
Arthur César de Medeiros Alves ◽  
Araci Malagodi de Almeida ◽  
Rodrigo Naveda ◽  
Guilherme Janson ◽  
...  

ABSTRACT Objective: To compare the dentoskeletal effects of rapid (RME) and slow (SME) maxillary expansion in patients with bilateral complete cleft lip and palate (BCLP). Materials and Methods: This was a secondary analysis of a previous randomized controlled trial (RCT). Forty-six patients (34 male, 12 female) with BCLP and posterior crossbite (mean age of 9.2 years) were randomly assigned to two study groups. Group RME comprised subjects treated with Haas/Hyrax expander. Group SME included patients treated with quad-helix appliance. Cone-beam computed tomography (CBCT) was performed before expansion (T1) and after appliance removal at the end of a 6-month retention period (T2) for a previous RCT that compared the transverse skeletal effects of RME and SME. CBCT-derived cephalometric images were generated and cephalometric analysis was performed using Dolphin Imaging Software (Chatsworth, Calif). Intergroup comparisons were performed using t tests (P < .05). Results: Baseline forms were similar between groups. No significant differences between RME and SME groups were found. Conclusions: Rapid and slow maxillary expansion produced similar sagittal and vertical changes in patients with BCLP. Both Haas/Hyrax and quad-helix appliances can be used in patients with vertical facial pattern. Clinical relevance: RME and SME can be equally indicated in the treatment of maxillary arch constriction in patients with BCLP.

2019 ◽  
Vol 90 (2) ◽  
pp. 233-238 ◽  
Author(s):  
Fernando Pugliese ◽  
Juan Martin Palomo ◽  
Louise Resti Calil ◽  
Arthur de Medeiros Alves ◽  
José Roberto Pereira Lauris ◽  
...  

ABSTRACT Objective: The objective of this study was to compare the effects on upper dental arch size and shape after maxillary expansion with Hyrax, Quad-helix, and a differential opening expander in bilateral cleft lip and palate (BCLP) patients. Materials and Methods: Seventy-five BCLP patients were divided into three groups: Hyrax (H), Quad-helix (QH), and Expander with differential opening (EDO). Digital models were obtained before (T1) and after 6 months (T2) of maxillary expansion. Twelve landmarks were placed by one investigator on T1 and T2 dental models of each group, and x,y coordinates for each landmark were collected. For dental arch size analysis, centroid size of each dental arch at T1 and T2 was calculated from raw coordinates and was used as the measure of size. Procrustes Analysis was performed for dental arch shape analysis. Analysis of variance was used to compare the groups for size and shape differences (P < .05). Results: There were no significant dental arch size differences among the expanders at T1 or T2. Differences in arch shape were found between all groups at T2. Intragroup arch shape showed a significant variation for the QH and EDO groups. while it remained stable in the H group. Conclusions: Both the QH and the EDO create dental arch shape changes with greater intercanine than intermolar increase. The H does not change the dental arch shape.


2020 ◽  
Vol 25 (3) ◽  
pp. 54-64
Author(s):  
Rodrigo Matos de Souza ◽  
Henrique Telles de Oliveira ◽  
Marcel Marchiori Farret

ABSTRACT Introduction: The cleft lip and palate is the most frequent craniofacial anomaly and as a consequence of this malformation some inadequate occlusal relationship between the arches are observed. Furthermore, dental absences, individual positioning changes of teeth as rotations, and in more rare situations the transpositions may be found as well. Description: In this context, in this article is reported a case of a 9-year-old patient with unilateral cleft lip and palate, with anterior and posterior crossbite on the left side, absence of the maxillary left lateral incisor, and transposition of the maxillary left canine and first premolar. The patient was treated with slow maxillary expansion, secondary graft and fixed orthodontic appliance, transposition maintenance and closing of the lateral incisor space with the first premolar, by means of mesialization of the posterior teeth. Results: At the end of the treatment, good intercuspation and an important aesthetic gain for the patient were achieved. The analysis three years after treatment revealed a good stability of the results obtained.


2020 ◽  
Vol 32 (2) ◽  
Author(s):  
Anie Apriani ◽  
Risti Saptarini Primarti ◽  
Alwin Kasim ◽  
Fahmi Oscandar

Introduction: Many children with post palatoplasty had crossbite posterior. This study was aimed to assess the nasopharynx area and the posterior crossbite severity level of children with cleft lip and palate (CLP) who received palatoplasty treatment compared to normal children. Methods: The study was observational analytic. The research subject was 14 children with CLP post-palatoplasty and 14 normal children. The object of research was 28 study models and secondary data of lateral cephalometric radiograph of children with CLP post palatoplasty and normal children. The measurement of PTM-ad1-Ad2-PTM and PTM-So-Ba-PTM were used to measure the nasopharyngeal area. Study models were assessed to analyse the level of severity of posterior crossbite. Results: The average of the soft tissues (the nasopharynx) area children with CLP post-palatoplasty was 35.02 mm2, which was lower than the normal child (35.73 mm2). Similarly, the average of the hard tissues (the nasopharynx) area children with CLP post-palatoplasty was 301.40 mm2, which was smaller than the normal children (315.54 mm2). Statistical analysis of the nasopharynx area resulted in non-significant difference. All children with CLP post-palatoplasty was suffered from posterior crossbite. The level of severity posterior crossbite, which was categorised as good was 42.9%, poor criteria was 35.7%, moderate criteria was 14.3%, and very good criteria was 7.1%. Conclusion: There is no difference between the average size of the nasopharynx area on children with CLP post-palatoplasty and normal children. The level of severity posterior crossbite after palatoplasty in CLP children mostly included in the good criteria.


2000 ◽  
Vol 37 (4) ◽  
pp. 416-420 ◽  
Author(s):  
Dror Aizenbud ◽  
Tsila Hefer ◽  
Adi Rachmiel ◽  
Alvaro A. Figueroa ◽  
Henry Z. Joachims ◽  
...  

2021 ◽  
pp. 100034
Author(s):  
Adriana Parra Barillas ◽  
Dimitrios Michelogiannakis ◽  
P. Emile Rossouw ◽  
Fawad Javed

2021 ◽  
pp. 105566562199336
Author(s):  
Akansha Bansal Agrawal ◽  
Harshavardhan Kidiyoor ◽  
Anand K. Patil Morth

This case report demonstrates the successful use of intraoral distractor/hygenic rapid expander (HYRAX) for rapid maxillary expansion in anteroposterior direction with an adjunctive use of face mask therapy for anterior orthopedic traction of maxillary complex in a cleft patient with concave profile. The patient was a 13-year-old girl who reported with a chief complaint of backwardly positioned upper jaw and a severely forward positioned lower jaw. Therefore, a treatment was chosen in which acrylic bonded rapid maxillary expansion was done with tooth tissue borne intraoral distractor/HYRAX having a different activation schedule along with Dr Henri Petit facemask to treat maxillary retrognathism. As a result, crossbite got corrected and attained a positive jet with no bone loss in cleft area over a period of 5 months which was followed by fixed mechanotherapy achieving a well settled occlusion in 1 year. After completion of expansion and fixed mechanotherapy, ANB became +1 post-treatment which was −4 pretreatment. The prognathic profile was markedly improved by expansion and taking advantage of the remaining growth potential, thus minimizing the chances of surgery later in life. This provided a viable alternative to orthognathic surgery with good long-term stability.


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