Dental arch changes after open bite treatment with spurs associated with posterior build-ups in the mixed dentition: A randomized clinical trial

2021 ◽  
Author(s):  
Aron Aliaga-Del Castillo ◽  
Silvio Augusto Bellini-Pereira ◽  
Lorena Vilanova ◽  
Felicia Miranda ◽  
Camila Massaro ◽  
...  
Keyword(s):  
Clinical Trial ◽  
Randomized Clinical Trial ◽  
Open Bite ◽  
Mixed Dentition ◽  
Dental Arch

Time dependent changes of variables associated with malocclusion in patients with Duchenne muscular dystrophy

2003 ◽  
Vol 27 (1) ◽  
pp. 53-61 ◽  
Author(s):  
Shinichi Matsumoto ◽  
Takanobu Morinushi ◽  
Tadashi Ogura
Keyword(s):  
Duchenne Muscular Dystrophy ◽  
Muscular Dystrophy ◽  
Developmental Stages ◽  
Open Bite ◽  
Craniofacial Morphology ◽  
Time Dependent ◽  
Mixed Dentition ◽  
Dental Arch ◽  
Transverse Expansion ◽  
Normal Occlusion

Time dependent changes of parameters associated with malocclusion in patients with Duchenne muscular dystrophy (DMD) were examined in four dental developmental stages in 34 patients.We adopted activities of daily living (ADL) score, dental arch, craniofacial morphology, and electromyograms of the masseter and temporalis muscle as parameters. A comparison was made with the results in DMD subjects to data from healthy subjects with normal occlusion reported in the literature. In DMD subjects, manifestations of open-bite were related to ADL score, sagittal shortening and transverse expansion of the dental arch and vertical overgrowth of the lower jaw. Posterior cross-bite malocclusion was associated with differences in the time dependent changes between the jaws in transverse expansion. The malocclusion in DMD subjects was also related to the time dependent disproportional changes in masticatory muscle function by EMG. Occlusal deviation in DMD subjects became apparent at the late mixed dentition and malocclusion became definitely manifest from early permanent dentition.

Dentoskeletal changes in open bite treatment using spurs and posterior build-ups: A randomized clinical trial

2021 ◽  
Vol 159 (1) ◽  
pp. 10-20
Author(s):  
Aron Aliaga-Del Castillo ◽  
Lorena Vilanova ◽  
Felicia Miranda ◽  
Luis Ernesto Arriola-Guillén ◽  
Daniela Garib ◽  
...  
Keyword(s):  
Clinical Trial ◽  
Randomized Clinical Trial ◽  
Open Bite

scholarly journals Root resorption associated with maxillary buccal segment intrusion using variable force magnitudes: A randomized clinical trial

2021 ◽  
Author(s):  
Heba E. Akl ◽  
Amr R. El-Beialy ◽  
Mohamed Abd El-Ghafour ◽  
Amr M. Abouelezz ◽  
Fouad A. El Sharaby
Keyword(s):  
Clinical Trial ◽  
Randomized Clinical Trial ◽  
Comparison Group ◽  
Root Resorption ◽  
Intervention Group ◽  
Final Analysis ◽  
Open Bite ◽  
Adult Patients ◽  
Significant Difference ◽  
Skeletal Open Bite

ABSTRACT Objectives To compare the root resorption resulting from miniscrew-supported maxillary posterior dentoalveolar intrusion using two different force magnitudes. Materials and Methods: Adult patients with skeletal open bite, indicated for maxillary posterior dentoalveolar intrusion, were recruited and randomly assigned to the comparison or intervention groups. The comparison group involved applying 200 g of intrusive force per segment, which measured 20 g per root, while this force was 400 g per segment in the intervention group, measuring 40 g per root. Results Twenty participants were included in the final analysis after 2 patients dropped out, 1 in each group, to end up with 10 subjects (200 roots) per group. There was statistically significant root resorption of 0.84 ± 0.96 mm and 0.93 ± 1.00 mm in the comparison and the intervention groups, respectively. However, there was no statistically significant difference between the groups. Conclusions Root resorption inevitably took place in association with orthodontic intrusion. However, increasing the magnitude of the intrusive force did not increase the amount of root resorption, either statistically or clinically.

scholarly journals Tooth alignment and pain experience with A-NiTi versus Cu-NiTi: a randomized clinical trial

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Fatemeh Azizi ◽  
Aida Extiari ◽  
Mohammad Moslem Imani
Keyword(s):  
Clinical Trial ◽  
Randomized Clinical Trial ◽  
Orthodontic Treatment ◽  
Pain Perception ◽  
Mcgill Pain Questionnaire ◽  
Dental Arch ◽  
Chi Square ◽  
Irregularity Index ◽  
Significant Difference ◽  
The Difference

Abstract Background Nickel-titanium (NiTi) archwires are routinely used for initial leveling and alignment of teeth in orthodontic treatment. This study aimed to clinically compare the level of pain and tooth alignment in orthodontic treatment with A-NiTi versus Cu-NiTi archwires. Methods In this parallel randomized clinical trial, 88 orthodontic patients (12–25 years) with an irregularity index > 2 mm in the anterior site of the lower dental arch who required non-extraction orthodontic treatment of the lower arch were randomized into two age- and sex-matched groups (n = 44) for treatment with A-NiTi and Cu-NiTi initial archwires. Each archwire was used for 6 weeks. After 6 weeks, the irregularity index was measured, and the level of pain was scored using the Modified McGill pain questionnaire (MPQ) and visual analog scale (VAS) according to the time of onset and duration of pain, and analgesic intake. Data were analyzed by paired t test, independent samples t test, and Chi-square test (P < 0.05). Results The irregularity index significantly decreased in both groups after 6 weeks of treatment (P < 0.001). However, the difference in this respect was not significant between the two groups (P > 0.05). Pain perception (P = 0.487), duration of pain (P = 0.546), and analgesic intake (P = 0.102) were not significantly different between the two groups either. Conclusion Both A-NiTi and Cu-NiTi archwires are equally effective for tooth alignment in the anterior site of the lower dental arch and have no significant difference with regard to the level of pain experienced by patients. Trial registration number: IRCT20190705044102N1 and Name of the registry: Iranian registry of clinical trials (https://irct.ir/) Date of registration: September, 26, 2019

scholarly journals Dentoalveolar effects produced by different appliances on early treatment of anterior open bite: A randomized clinical trial

2018 ◽  
Vol 88 (6) ◽  
pp. 684-691 ◽  
Author(s):  
Paulo Henrique Rossato ◽  
Thais Maria Freire Fernandes ◽  
Flávia Diane Assis Urnau ◽  
Ana Cláudia de Castro ◽  
Ferreira Conti ◽  
...  
Keyword(s):  
Clinical Trial ◽  
Randomized Clinical Trial ◽  
Intraclass Correlation ◽  
Open Bite ◽  
Anterior Open Bite ◽  
Eligibility Criteria ◽  
Tukey Test ◽  
Final Sample ◽  
Lateral Cephalograms ◽  
Significant Difference

ABSTRACT Objectives: To compare different appliances for early anterior open bite (AOB) correction. Materials and Methods: This was a parallel, randomized clinical trial. A prospective sample of patients with AOB was recruited consecutively. Eligibility criteria included angle class I malocclusion with AOB equal to or greater than 1 mm. Participants were allocated by simple randomization to 4 groups: bonded spurs, chin cup, fixed palatal crib, and removable palatal crib. Dentoalveolar changes among the groups were assessed by blinded observers by comparing lateral cephalograms taken before (T1) and 12 months after treatment (T2; analysis of variance followed by Tukey test). Of the measurements, 30% were reassessed for reliability (intraclass correlation coefficient and Bland-Altman agreement test; α = 5%; 95% confidence interval). Results: A total of 99 patients with a mean AOB of 3.7 mm (mean age 8.4 ± 0.8 years, both genders) were recruited. Dropouts occurred in all the groups, yielding a final sample size of 81 analyzed individuals. Intergroup comparisons of differences (T2–T1) showed significant differences for the incisor positioning variables (1.1, 1-PP, 6-PP, IMPA, 1.NB and 1-GoMe). However, there was no significant difference in AOB reduction among the groups, with an average correction of 3.1 mm. Conclusions: All of the tested devices promoted dental changes, especially in the anterior region, and contributed to AOB reduction during the study period. However, fixed palatal crib demonstrated greater impact on the positioning of the incisors.

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