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Ureni R, Verdecchia A, Suárez-Fernández C, Mereu M, Schirru R, Spinas E. Effectiveness of Elastodontic Devices for Correcting Sagittal Malocclusions in Mixed Dentition Patients: A Scoping Review. Dent J (Basel) 2024; 12:247. [PMID: 39195091 DOI: 10.3390/dj12080247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2024] [Revised: 07/06/2024] [Accepted: 08/01/2024] [Indexed: 08/29/2024] Open
Abstract
Elastodontics is an interceptive orthodontic therapy that uses light and biological elastic forces through preformed or custom-made removable orthodontic appliances. This study aims to evaluate the effects of elastodontic devices on correcting sagittal discrepancies in growing subjects with mixed dentition. Electronic research was conducted on four databases: PubMed, Scopus, EMBASE, and Web of Science. Data were extracted based on the first author, year of publication, setting and country, study design, sample characteristics, sample size calculation, type of malocclusion, intervention, control group type, compliance, follow-up, and cephalometric measurements. Sixteen studies were included in the final review. Most studies observed a statistically significant reduction (p < 0.05) in SNB and ANB angles. Ten studies reported a reduction in overjet, while eight studies found no change in facial divergence. Comparisons with conventional functional devices revealed no consensus on the skeletal and dentoalveolar effects. Elastodontic appliances significantly improve cephalometric and dentoalveolar parameters, potentially correcting skeletal and dental relationships. However, result variability and unclear advantages over traditional appliances highlight the need for further research.
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Affiliation(s)
- Rebecca Ureni
- Department of Surgical Sciences, Postgraduate School in Orthodontics, University of Cagliari, 09124 Cagliari, Italy
| | - Alessio Verdecchia
- Department of Surgical Sciences, Postgraduate School in Orthodontics, University of Cagliari, 09124 Cagliari, Italy
| | - Carlota Suárez-Fernández
- Department of Surgery and Medical-Surgical Specialities, School of Medicine and Health Sciences, University of Oviedo, 33003 Oviedo, Spain
| | - Manuela Mereu
- Department of Surgical Sciences, Postgraduate School in Orthodontics, University of Cagliari, 09124 Cagliari, Italy
| | - Roberto Schirru
- Department of Surgical Sciences, Postgraduate School in Orthodontics, University of Cagliari, 09124 Cagliari, Italy
| | - Enrico Spinas
- Department of Surgical Sciences, Postgraduate School in Orthodontics, University of Cagliari, 09124 Cagliari, Italy
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Kujirai K, Takahashi M, Koizumi S, Seimiya K, Nakashizu T, Watanabe M, Yamaguchi T. 3D Printer-Assisted Layered Fabrication of a Novel Appliance for Oral Myofunctional Therapy and Functional Evaluation of Its Effects on Orofacial Muscles During Wear. Cureus 2024; 16:e59228. [PMID: 38807807 PMCID: PMC11132836 DOI: 10.7759/cureus.59228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/19/2024] [Indexed: 05/30/2024] Open
Abstract
Aim Balanced function of the orofacial muscles is important for normal occlusion and dentition; however, patients with malocclusion often present with myofunctional disorder (MFD). Myofunctional therapy (MFT) has received much attention as a method for reducing MFD. Moreover, prefabricated functional appliances (PFAs) have been developed as a method to eliminate abnormal muscle pressure and guide the tongue into the correct position. However, PFAs have disadvantages, such as poor intraoral retention, limited usage time due to discomfort and poor patient compliance, and changes in the axis of the mandibular anterior teeth. Therefore, this study aimed to develop a new custom-made splint-type orthodontic appliance with CAD/CAM technology. Moreover, we evaluated the characteristics of the appliance and conducted functional tests to determine the effects of the appliance on the orofacial muscles and the discomfort associated with its use. Materials and methods Twenty-five volunteers (nine females and 16 males; mean age 28.4 ± 3.4 years) with normal swallowing function were included in the study. Lip-closing strength (LCS), electromyogram during swallowing, oxygen saturation, and pulse rate were measured and compared when the appliance was not worn and when it was worn. In addition, tongue habits were evaluated, and the maximum tongue pressure was measured when the appliance was not worn. The subjects were asked to answer a questionnaire using a numerical rating scale (NRS) regarding discomfort when wearing the appliance. The evaluation items were swallowing difficulty, speaking difficulty, and breathlessness, which were rated on an 11-point scale ranging from 0 to 10. Statistical tests were conducted using IBM SPSS version 28.0.1 (IBM, Armonk, NY, USA) with the Shapiro-Wilk and Levene's test, followed by the Wilcoxon signed rank sum test. The significance level was set at α = 0.05. The measurement error for each measurement item was evaluated using an intraclass correlation coefficient. Results A new custom-made splint-type orthodontic appliance was fabricated for each subject. The fit and retention of the appliance in the mouth were good when fitted, and a comparison of the functional test measurements of 25 subjects with and without the appliance showed that the LCS decreased significantly (p<0.05) before and after wearing the appliance. However, no statistically significant differences were found for the other items. The Mann-Whitney U test regarding the effects of sex, previous orthodontic treatment, or MFT, and oral habits did not statistically significantly influence the effects of wearing the device. In the NRS results, "difficulty swallowing" was observed in half of the subjects, "difficulty breathing" was rarely observed, and "difficulty speaking" was observed in all subjects. Conclusions A novel custom-made splint-type orthodontic appliance was designed and fabricated using digital workflow and 3D printing technology. This appliance was designed to correct oral habits and was made from a new material classified as a class II medical appliance according to the international harmonized classification.
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Affiliation(s)
- Keiko Kujirai
- Department of Orthodontics, School of Dentistry, Kanagawa Dental University, Yokosuka, JPN
| | - Masahiro Takahashi
- Department of Orthodontics, School of Dentistry, Kanagawa Dental University, Yokosuka, JPN
| | - So Koizumi
- Department of Orthodontics, School of Dentistry, Kanagawa Dental University, Yokosuka, JPN
| | - Kazuhide Seimiya
- Division of Dental Practice Support, Department of Dental Technology, School of Dentistry, Kanagawa Dental University, Yokosuka, JPN
| | - Toshihumi Nakashizu
- Division of Dental Practice Support, Department of Dental Technology, School of Dentistry, Kanagawa Dental University, Yokosuka, JPN
| | - Mayumi Watanabe
- Division of the Dental Practice Support, Department of Oral Hygiene Maintenance, School of Dentistry, Kanagawa Dental University, Yokosuka, JPN
| | - Tetsutaro Yamaguchi
- Department of Orthodontics, School of Dentistry, Kanagawa Dental University, Yokosuka, JPN
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Cannatà D, Galdi M, Martina S, Rongo R, D’Antò V, Valletta R, Bucci R. Preformed Elastodontic Appliances: Awareness and Attitude of Orthodontists and General Dental Practitioners. CHILDREN (BASEL, SWITZERLAND) 2024; 11:418. [PMID: 38671635 PMCID: PMC11048748 DOI: 10.3390/children11040418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Revised: 03/11/2024] [Accepted: 03/29/2024] [Indexed: 04/28/2024]
Abstract
BACKGROUND Preformed elastodontic appliances (EAs) have been described as safe, cost-effective, and easy-to-use devices for interceptive orthodontic treatment in growing patients. This study aimed to assess the knowledge and the attitude of dentists toward the use of EAs and to compare the behaviors of orthodontists (Os) with those of general dental practitioners (GDPs). METHODS An anonymous survey was distributed among dentists through social media. Twenty-two items were divided as follows: characteristics of respondents; general knowledge about EAs; section for EA-users; and section for EA non-users. Chi-squared tests were used to analyze differences in responses between groups. RESULTS Participants included 226 Os and 168 GDPs. The majority in both groups reported having adequate knowledge about EAs and utilizing them in their practice. GDPs usually use EAs to treat children during the early phase of growth, while Os also use EAs to address orthodontic problems in different stages of dentition, experiencing a chair time reduction compared with traditional appliances. Regarding EA non-users, GDPs seem not to find an application among their patients, whereas Os reported not having enough patient compliance during treatment. CONCLUSIONS Although treatment with EAs is common among all dentists, differences exist between Os and GDPs in the awareness and application, as well as in the reasons provided for not using EAs.
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Affiliation(s)
- Davide Cannatà
- Department of Medicine, Surgery and Dentistry “Scuola Medica Salernitana”, University of Salerno, Via Allende, 84081 Baronissi, SA, Italy; (D.C.); (M.G.); (S.M.)
| | - Marzio Galdi
- Department of Medicine, Surgery and Dentistry “Scuola Medica Salernitana”, University of Salerno, Via Allende, 84081 Baronissi, SA, Italy; (D.C.); (M.G.); (S.M.)
| | - Stefano Martina
- Department of Medicine, Surgery and Dentistry “Scuola Medica Salernitana”, University of Salerno, Via Allende, 84081 Baronissi, SA, Italy; (D.C.); (M.G.); (S.M.)
| | - Roberto Rongo
- Department of Neurosciences, Reproductive Sciences and Oral Sciences, University of Naples Federico II, Via Pansini 5, 80131 Naples, NA, Italy; (R.R.); (V.D.); (R.V.)
| | - Vincenzo D’Antò
- Department of Neurosciences, Reproductive Sciences and Oral Sciences, University of Naples Federico II, Via Pansini 5, 80131 Naples, NA, Italy; (R.R.); (V.D.); (R.V.)
| | - Rosa Valletta
- Department of Neurosciences, Reproductive Sciences and Oral Sciences, University of Naples Federico II, Via Pansini 5, 80131 Naples, NA, Italy; (R.R.); (V.D.); (R.V.)
| | - Rosaria Bucci
- Department of Neurosciences, Reproductive Sciences and Oral Sciences, University of Naples Federico II, Via Pansini 5, 80131 Naples, NA, Italy; (R.R.); (V.D.); (R.V.)
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Ronsivalle V, Nucci L, Bua N, Palazzo G, La Rosa S. Elastodontic Appliances for the Interception of Malocclusion in Children: A Systematic Narrative Hybrid Review. CHILDREN (BASEL, SWITZERLAND) 2023; 10:1821. [PMID: 38002912 PMCID: PMC10670240 DOI: 10.3390/children10111821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 11/10/2023] [Accepted: 11/15/2023] [Indexed: 11/26/2023]
Abstract
BACKGROUND Interceptive orthodontic treatment aims to eliminate factors that prevent the harmonious development of the maxillary and mandibular arches during childhood, and elastodontic appliances (EAs) represent a group of devices with an increasingly important role. This systematic narrative hybrid review (HR) aims to provide an overview of the clinical indications for the use of EAs according to the available evidence and to identify potential research areas for unexplored applications. MATERIALS AND METHODS To assess the available literature on the subject, selective database searches were performed between July 2023 and September 2023. With the assistance of a health sciences librarian, a search strategy that utilized terms related to elastodontic therapy was developed. Embase, Scopus, PubMed, and Web of Science were the databases used. RESULTS The current literature addressing the usability of EAs is scarce and mostly limited to case reports and case series. After 2168 citations were found through the searches, 13 studies were ultimately included. In this regard, information about the clinical use and effectiveness of EAs are reported in a narrative form, defining specific domains of the application that are clinically oriented, including sagittal and transversal discrepancies, atypical swallowing, teeth malposition, two-phase orthodontics and a lack of teeth retention. CONCLUSIONS Within the intrinsic quality limitation of the available literature, it seems that EAs may represent a promising treatment alternative for managing mild-to-moderate malocclusion in children as an adjuvant therapy to the interruption of spoiled habits.
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Affiliation(s)
- Vincenzo Ronsivalle
- Department of Medical-Surgical Specialties—Section of Orthodontics, School of Dentistry, University of Catania, Policlinico Universitario “G. Rodolico-San Marco”, 95123 Catania, Italy; (N.B.); (G.P.); (S.L.R.)
| | - Ludovica Nucci
- Department of Medical-Surgical and Dental Specialties, University of Campania Luigi Vanvitelli, 80100 Naples, Italy
| | - Nicolò Bua
- Department of Medical-Surgical Specialties—Section of Orthodontics, School of Dentistry, University of Catania, Policlinico Universitario “G. Rodolico-San Marco”, 95123 Catania, Italy; (N.B.); (G.P.); (S.L.R.)
| | - Giuseppe Palazzo
- Department of Medical-Surgical Specialties—Section of Orthodontics, School of Dentistry, University of Catania, Policlinico Universitario “G. Rodolico-San Marco”, 95123 Catania, Italy; (N.B.); (G.P.); (S.L.R.)
| | - Salvatore La Rosa
- Department of Medical-Surgical Specialties—Section of Orthodontics, School of Dentistry, University of Catania, Policlinico Universitario “G. Rodolico-San Marco”, 95123 Catania, Italy; (N.B.); (G.P.); (S.L.R.)
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Patano A, Inchingolo AM, Cardarelli F, Inchingolo AD, Viapiano F, Giotta M, Bartolomeo N, Di Venere D, Malcangi G, Minetti E, Palermo A, Inchingolo F, Dipalma G. Effects of Elastodontic Appliance on the Pharyngeal Airway Space in Class II Malocclusion. J Clin Med 2023; 12:4280. [PMID: 37445315 DOI: 10.3390/jcm12134280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 06/24/2023] [Accepted: 06/25/2023] [Indexed: 07/15/2023] Open
Abstract
BACKGROUND The present study analyzed the changes obtained on the upper airway and hyoid bone dimensions in a group of patients with skeletal Class II malocclusion treated with functional elastodontic devices compared to an untreated control group. METHODS A group of 33 patients (19 females and 14 males) with Class II malocclusion treated with AMCOP® SC elastodontic device was compared with a control group of 35 subjects (17 females and 18 males) with untreated Class II malocclusion. Lateral cephalograms were available at the start (T0) and end of treatment/period of observation (T1). Cephalometric analysis was performed and linear measurements to evaluate airway space and hyoid bone position were also obtained. A multivariate analysis of variance for repeated measures (MANOVA) was performed to determine the effects of interactions for the groups for time. RESULTS Statistically significant differences were found in the study group from T0 and T1 with an improvement of superior upper airway (SPAS p < 0.0001), while in the control group it did not change in a statistically significant way from T0 to T1. The MANOVA test showed statistically significant differences between the two groups for the changes of SPAS (p = 0.003), IAS (p = 0.049), and H-C3 vertical (p = 0.038) values. CONCLUSIONS Functional elastodontic therapy produced significant favorable airway changes in skeletal class II subjects.
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Affiliation(s)
- Assunta Patano
- Department of Interdisciplinary Medicine, University of Bari "Aldo Moro", 70124 Bari, Italy
| | | | - Filippo Cardarelli
- Department of Interdisciplinary Medicine, University of Bari "Aldo Moro", 70124 Bari, Italy
| | | | - Fabio Viapiano
- Department of Interdisciplinary Medicine, University of Bari "Aldo Moro", 70124 Bari, Italy
| | - Massimo Giotta
- Department of Interdisciplinary Medicine, University of Bari "Aldo Moro", 70124 Bari, Italy
| | - Nicola Bartolomeo
- Department of Interdisciplinary Medicine, University of Bari "Aldo Moro", 70124 Bari, Italy
| | - Daniela Di Venere
- Department of Interdisciplinary Medicine, University of Bari "Aldo Moro", 70124 Bari, Italy
| | - Giuseppina Malcangi
- Department of Interdisciplinary Medicine, University of Bari "Aldo Moro", 70124 Bari, Italy
| | - Elio Minetti
- Department of Biomedical, Surgical, Dental Science, University of Milan, 20161 Milan, Italy
| | - Andrea Palermo
- College of Medicine and Dentistry, Birmingham B4 6BN, UK
| | - Francesco Inchingolo
- Department of Interdisciplinary Medicine, University of Bari "Aldo Moro", 70124 Bari, Italy
| | - Gianna Dipalma
- Department of Interdisciplinary Medicine, University of Bari "Aldo Moro", 70124 Bari, Italy
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Huang S, Chen Y, Chen T, Mallineni SK, McGrath C, Hagg U. Clinical effectiveness of the Eruption Guidance Appliances in treating malocclusion in the mixed dentition: A systematic review and meta-analysis. Int J Paediatr Dent 2022; 32:843-855. [PMID: 35191109 DOI: 10.1111/ipd.12961] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 12/26/2021] [Accepted: 02/11/2022] [Indexed: 11/30/2022]
Abstract
AIM To evaluate the clinical effectiveness of the eruption guidance appliances (EGAs) in treating malocclusion in the early mixed dentition. DESIGN Electronic databases were comprehensively searched for the eligibility literature of the EGA treatment for a period spanning from the earliest available date in each database up to July 2021. Randomized controlled trials, controlled clinical trials, and prospective and retrospective cohort studies were included in the present review. The quality of clinical trials was assessed according to the Cochrane Collaboration's tools (RoB2.0 and ROBINS-I), whereas cohort studies were based on the Newcastle-Ottawa Scale (NOS). The data were gathered and synthesized with the Stata software (version 12). RESULTS The screen yielded 436 articles, of which 17 papers were potentially eligible, and 7 articles from 3 studies (1 RCT, 1 CCT, and 1 PCS) were qualified for the final review and analysis. The meta-analysis showed both favorable dentoalveolar and skeletal changes in short term. Both overjet and overbite had a significant decrease after treatment (MD = -2.38 mm, 95% CI: -2.82 to -1.94, p < .001, and MD = -2.43 mm, 95% CI: -3.52 to -1.35, p < .001, respectively), and SNB increased significantly by 0.73 degrees (95% CI: 0.17-1.28, p = .01). After the retention period, however, overbite had a significant increase of 0.88mm, which indicated the occurrence of a relapse (95% CI: 0.60-1.16, p < .001). CONCLUSIONS According to the existing evidence, the EGA treatment is effectively correcting overjet and overbite in the early mixed dentition in short term; furthermore, high-quality and long-term studies are warranted to determine its long-term effectiveness.
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Affiliation(s)
- Shuying Huang
- Department of Stomatology, School of Medicine, Xiamen University, Xiamen, China
| | - Yong Chen
- Department of Stomatology, School of Medicine, Xiamen University, Xiamen, China
| | - Tianmu Chen
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen, China
| | - Sreekanth Kumar Mallineni
- Department of Preventive Science, College of Dentistry, Majmaah University, Almajmaah, Saudi Arabia.,Center for Transdisciplinary Research (CFTR), Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, India
| | - Colman McGrath
- Discipline of Dental Public Health, Faculty of Dentistry, The University of Hong Kong, Hong Kong, Hong Kong
| | - Urban Hagg
- Discipline of Orthodontics, Faculty of Dentistry, The University of Hong Kong, Hong Kong, Hong Kong
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Marra PM, Fiorillo L, Cervino G, Cardarelli F, Cicciù M, Laino L. Elastodontic treatment with oral bio-activators in young children. Minerva Dent Oral Sci 2022; 71:270-276. [PMID: 36321621 DOI: 10.23736/s2724-6329.22.04696-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
BACKGROUND Elastodontic therapy can correct bad oral habits and malocclusions in young patients by guiding jaw growth, eliminating functional disorders, and improving tooth position. The aim of this study was to assess the effects of bio-activator therapy on the presence of atypical swallowing with tongue thrust in growing patients. METHODS A retrospective study was conducted. Data regarding the early orthodontic treatment of 40 consecutive patients with atypical swallowing and tongue thrust (23 males and 17 females) were assembled from January 2019 to January 2020. All patients (≥7 and ≤15 years of age) were monitored for 1 year in a private practice in Isernia, Italy. RESULTS The mean age at commencement of orthodontic treatment was 8.5 years (range=7.1-14.9 years), and the mean total duration of therapy was 1 year (range=11 months-1 year). Final lateral radiographs demonstrated a mean of improvement of 8° for upper and lower incisor proclination (I/SN) and 3.5° for incisor mandibular plane angle (IMPA) in 36 patients, and 5° of I/SN and 2° of IMPA in the remaining 4 children after 1 year of treatment. CONCLUSIONS Bad oral habits in younger patients must not be ignored. The duration of treatment can differ depending on the severity of the open bite and the patient's cooperation. This study demonstrates the short-term efficacy of these myofunctional appliances in the treatment of atypical swallowing. In order to quickly eliminate factors which endanger healthy development of dento-skeletal structure, it is important to closely monitor patients during their development phase.
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Affiliation(s)
- Paola M Marra
- Complex Operative Unit of Stomatological Surgery in Developmental Age, Luigi Vanvitelli University of Campania, Naples, Italy -
| | - Luca Fiorillo
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, University of Messina, Messina, Italy
- Multidisciplinary Department of Medical-Surgical and Odontostomatological Specialties, Luigi Vanvitelli University of Campania, Naples, Italy
- Department of Implantology, Faculty of Dentistry, University of Aldent, Tirana, Albania
| | - Gabriele Cervino
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, University of Messina, Messina, Italy
| | - Filippo Cardarelli
- Department of Interdisciplinary Medicine, Aldo Moro University of Bari, Bari, Italy
| | - Marco Cicciù
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, University of Messina, Messina, Italy
| | - Luigi Laino
- Multidisciplinary Department of Medical-Surgical and Odontostomatological Specialties, Luigi Vanvitelli University of Campania, Naples, Italy
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Wasinwasukul P, Nalamliang N, Pairatchawan N, Thongudomporn U. Effects of anterior bite planes fabricated from acrylic resin and thermoplastic material on masticatory muscle responses and maximum bite force in children with a deep bite: a 6-month randomized controlled trial. J Oral Rehabil 2022; 49:980-992. [PMID: 35730261 DOI: 10.1111/joor.13351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Revised: 06/05/2022] [Accepted: 06/16/2022] [Indexed: 11/29/2022]
Abstract
BACKGROUND Anterior bite planes are bite-raising appliances used for deep bite correction. However, muscle responses to anterior bite planes of different hardnesses may vary. OBJECTIVES To prospectively evaluate masticatory muscle activity, muscle balance, and maximum bite force (MBF) responses to anterior bite planes fabricated from acrylic resin (ABP) or bi-laminate thermoplastic (TBP) over 6 months in children with a deep bite. METHODS Sixty-six children were randomly assigned to the ABP, TBP, or untreated control groups. Masticatory muscle activity, activity index (AC), and percentage overlapping coefficient (POC) were assessed by surface electromyography; MBF, using a custom-made bite force sensor. Data were collected before, immediately after appliance insertion, and after 2 weeks and 1, 3, and 6 months of treatment. Within- and between-group differences were analyzed using one-way ANOVA/Kruskal-Wallis and Mann Whitney U-tests (α=0.05); Friedman's tests were used to assess within-group differences over time (α=0.08). RESULTS At rest, no dependent variables changed throughout the study. At maximum clenching, masticatory muscle activity immediately dropped significantly but returned to baseline values and was equal to the control group at 1-3 months. The ABP group had significantly lower masseter activity and AC than the TBP group after insertion. Neither POC nor MBF were significantly different within or between groups. CONCLUSION Masticatory muscle activity reduced after anterior bite plane insertion but returned to baseline after 1-3 months. Masseter activity decreased significantly more in the ABP group than TBP group. Neither appliance significantly affected POC or MBF.
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Affiliation(s)
- Passakorn Wasinwasukul
- Orthodontic section, Department of Preventive Dentistry, Faculty of Dentistry, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand
| | - Napat Nalamliang
- Department of Occlusion, Faculty of Dentistry, Chulalongkorn University, Bangkok 10330, Thailand
| | - Nalin Pairatchawan
- Orthodontic section, Department of Preventive Dentistry, Faculty of Dentistry, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand
| | - Udom Thongudomporn
- Orthodontic section, Department of Preventive Dentistry, Faculty of Dentistry, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand
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9
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Inchingolo AD, Patano A, Coloccia G, Ceci S, Inchingolo AM, Marinelli G, Malcangi G, Montenegro V, Laudadio C, Pede CD, Garibaldi M, Kruti Z, Maggiore ME, Mancini A, Nucci L, Bordea IR, Scarano A, Lorusso F, Dipalma G, Di Venere D, Cardarelli F, Inchingolo F. The Efficacy of a New AMCOP ® Elastodontic Protocol for Orthodontic Interceptive Treatment: A Case Series and Literature Overview. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:988. [PMID: 35055811 PMCID: PMC8775806 DOI: 10.3390/ijerph19020988] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Revised: 01/11/2022] [Accepted: 01/13/2022] [Indexed: 02/01/2023]
Abstract
BACKGROUND Elastodontics is a specific interceptive orthodontic treatment that uses removable elastomeric appliances. They are functional appliances that produce neuromuscular, orthopedic and dental effects. Thus, these devices are useful in the developmental age, when skeletal structures are characterized by important plasticity and adaptation capacity, allowing to remove factors responsible for malocclusions. Elastomeric devices are generally well tolerated by patients requiring simple collaboration and management. This work can be useful to update all orthodontists already adopting these appliances or for those who want to approach them for the first time. This study aimed to describe four cases treated with new elastomeric devices called AMCOP Bio-Activators and to provide an overview of elastodontics, its evolution, indications and limits. METHODS A total of four clinical cases were presented after a treatment period of 16-20 months to evaluate the clinical and radiological effects of the elastodontic therapy. RESULTS The effectiveness of Bio-Activators on clinical cases was evidenced with a significant improvement in skeletal and dentoalveolar relationship, and malocclusion correction in a limited treatment period (16-20 months). CONCLUSIONS The Bio-Activators showed clinical effectiveness to achieve therapeutic targets according to a low impact on the patient's compliance.
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Affiliation(s)
- Alessio Danilo Inchingolo
- Department of Interdisciplinary Medicine, University of Bari “Aldo Moro”, 70124 Bari, Italy; (A.D.I.); (G.C.); (A.M.I.); (G.M.); (G.M.); (V.M.); (C.L.); (C.D.P.); (M.G.); (Z.K.); (M.E.M.); (A.M.); (G.D.); (D.D.V.); (F.C.)
| | - Assunta Patano
- Department of Interdisciplinary Medicine, University of Bari “Aldo Moro”, 70124 Bari, Italy; (A.D.I.); (G.C.); (A.M.I.); (G.M.); (G.M.); (V.M.); (C.L.); (C.D.P.); (M.G.); (Z.K.); (M.E.M.); (A.M.); (G.D.); (D.D.V.); (F.C.)
| | - Giovanni Coloccia
- Department of Interdisciplinary Medicine, University of Bari “Aldo Moro”, 70124 Bari, Italy; (A.D.I.); (G.C.); (A.M.I.); (G.M.); (G.M.); (V.M.); (C.L.); (C.D.P.); (M.G.); (Z.K.); (M.E.M.); (A.M.); (G.D.); (D.D.V.); (F.C.)
| | - Sabino Ceci
- Department of Interdisciplinary Medicine, University of Bari “Aldo Moro”, 70124 Bari, Italy; (A.D.I.); (G.C.); (A.M.I.); (G.M.); (G.M.); (V.M.); (C.L.); (C.D.P.); (M.G.); (Z.K.); (M.E.M.); (A.M.); (G.D.); (D.D.V.); (F.C.)
| | - Angelo Michele Inchingolo
- Department of Interdisciplinary Medicine, University of Bari “Aldo Moro”, 70124 Bari, Italy; (A.D.I.); (G.C.); (A.M.I.); (G.M.); (G.M.); (V.M.); (C.L.); (C.D.P.); (M.G.); (Z.K.); (M.E.M.); (A.M.); (G.D.); (D.D.V.); (F.C.)
| | - Grazia Marinelli
- Department of Interdisciplinary Medicine, University of Bari “Aldo Moro”, 70124 Bari, Italy; (A.D.I.); (G.C.); (A.M.I.); (G.M.); (G.M.); (V.M.); (C.L.); (C.D.P.); (M.G.); (Z.K.); (M.E.M.); (A.M.); (G.D.); (D.D.V.); (F.C.)
| | - Giuseppina Malcangi
- Department of Interdisciplinary Medicine, University of Bari “Aldo Moro”, 70124 Bari, Italy; (A.D.I.); (G.C.); (A.M.I.); (G.M.); (G.M.); (V.M.); (C.L.); (C.D.P.); (M.G.); (Z.K.); (M.E.M.); (A.M.); (G.D.); (D.D.V.); (F.C.)
| | - Valentina Montenegro
- Department of Interdisciplinary Medicine, University of Bari “Aldo Moro”, 70124 Bari, Italy; (A.D.I.); (G.C.); (A.M.I.); (G.M.); (G.M.); (V.M.); (C.L.); (C.D.P.); (M.G.); (Z.K.); (M.E.M.); (A.M.); (G.D.); (D.D.V.); (F.C.)
| | - Claudia Laudadio
- Department of Interdisciplinary Medicine, University of Bari “Aldo Moro”, 70124 Bari, Italy; (A.D.I.); (G.C.); (A.M.I.); (G.M.); (G.M.); (V.M.); (C.L.); (C.D.P.); (M.G.); (Z.K.); (M.E.M.); (A.M.); (G.D.); (D.D.V.); (F.C.)
| | - Chiara Di Pede
- Department of Interdisciplinary Medicine, University of Bari “Aldo Moro”, 70124 Bari, Italy; (A.D.I.); (G.C.); (A.M.I.); (G.M.); (G.M.); (V.M.); (C.L.); (C.D.P.); (M.G.); (Z.K.); (M.E.M.); (A.M.); (G.D.); (D.D.V.); (F.C.)
| | - Mariagrazia Garibaldi
- Department of Interdisciplinary Medicine, University of Bari “Aldo Moro”, 70124 Bari, Italy; (A.D.I.); (G.C.); (A.M.I.); (G.M.); (G.M.); (V.M.); (C.L.); (C.D.P.); (M.G.); (Z.K.); (M.E.M.); (A.M.); (G.D.); (D.D.V.); (F.C.)
| | - Zamira Kruti
- Department of Interdisciplinary Medicine, University of Bari “Aldo Moro”, 70124 Bari, Italy; (A.D.I.); (G.C.); (A.M.I.); (G.M.); (G.M.); (V.M.); (C.L.); (C.D.P.); (M.G.); (Z.K.); (M.E.M.); (A.M.); (G.D.); (D.D.V.); (F.C.)
| | - Maria Elena Maggiore
- Department of Interdisciplinary Medicine, University of Bari “Aldo Moro”, 70124 Bari, Italy; (A.D.I.); (G.C.); (A.M.I.); (G.M.); (G.M.); (V.M.); (C.L.); (C.D.P.); (M.G.); (Z.K.); (M.E.M.); (A.M.); (G.D.); (D.D.V.); (F.C.)
| | - Antonio Mancini
- Department of Interdisciplinary Medicine, University of Bari “Aldo Moro”, 70124 Bari, Italy; (A.D.I.); (G.C.); (A.M.I.); (G.M.); (G.M.); (V.M.); (C.L.); (C.D.P.); (M.G.); (Z.K.); (M.E.M.); (A.M.); (G.D.); (D.D.V.); (F.C.)
| | - Ludovica Nucci
- Multidisciplinary Department of Medical-Surgical and Dental Specialties, University of Campania Luigi Vanvitelli, Via L. De Crecchio 6, 80138 Naples, Italy;
| | - Ioana Roxana Bordea
- Department of Oral Rehabilitation, Faculty of Dentistry, Iuliu Hațieganu University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania
| | - Antonio Scarano
- Department of Innovative Technologies in Medicine and Dentistry, University of Chieti-Pescara, 66100 Chieti, Italy;
| | - Felice Lorusso
- Department of Innovative Technologies in Medicine and Dentistry, University of Chieti-Pescara, 66100 Chieti, Italy;
| | - Gianna Dipalma
- Department of Interdisciplinary Medicine, University of Bari “Aldo Moro”, 70124 Bari, Italy; (A.D.I.); (G.C.); (A.M.I.); (G.M.); (G.M.); (V.M.); (C.L.); (C.D.P.); (M.G.); (Z.K.); (M.E.M.); (A.M.); (G.D.); (D.D.V.); (F.C.)
| | - Daniela Di Venere
- Department of Interdisciplinary Medicine, University of Bari “Aldo Moro”, 70124 Bari, Italy; (A.D.I.); (G.C.); (A.M.I.); (G.M.); (G.M.); (V.M.); (C.L.); (C.D.P.); (M.G.); (Z.K.); (M.E.M.); (A.M.); (G.D.); (D.D.V.); (F.C.)
| | - Filippo Cardarelli
- Department of Interdisciplinary Medicine, University of Bari “Aldo Moro”, 70124 Bari, Italy; (A.D.I.); (G.C.); (A.M.I.); (G.M.); (G.M.); (V.M.); (C.L.); (C.D.P.); (M.G.); (Z.K.); (M.E.M.); (A.M.); (G.D.); (D.D.V.); (F.C.)
| | - Francesco Inchingolo
- Department of Interdisciplinary Medicine, University of Bari “Aldo Moro”, 70124 Bari, Italy; (A.D.I.); (G.C.); (A.M.I.); (G.M.); (G.M.); (V.M.); (C.L.); (C.D.P.); (M.G.); (Z.K.); (M.E.M.); (A.M.); (G.D.); (D.D.V.); (F.C.)
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10
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Ciavarella D, Campobasso A, Campa R, Suriano C, Illuzzi G, Cazzolla AP, Tepedino M. Cephalometric effects of the elastodontic appliance in managing skeletal Class II division 1 cases. AUSTRALASIAN ORTHODONTIC JOURNAL 2021. [DOI: 10.21307/aoj-2021.026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Abstract
Aim
The aim of the study was to evaluate the cephalometric effects of the elastodontic appliance (EA) in the management of patients presenting with a skeletal Class II/1 malocclusion.
Methods
Twenty Class II patients treated using the EA (Group EA) were compared with 20 Class II untreated children (Group C). Cephalograms were compared at the start (T0) and after 24 months (T1) after which time, skeletal, dental, and aesthetic variables were evaluated. A statistical evaluation was conducted by applying an unpaired t-test for normally distributed variables.
Results
From T0 to T1, the EA group showed a significant increase in lower facial height (LFH), in mandibular length (Co-Gn), in the upper incisor and cranial plane angle (1 + SN) and in the distance between a true vertical line (TVL)-soft tissue B (B’) and TVL-soft tissue Pogonion (Pog’) points. From T0 to T1, group C showed a significant decrease in SN-occlusal plane (PO) (p < 0.01), of SN-mandibular plane (Go-Me) (p < 0.01) and of total gonial (N-Go-Me) angles (p < 0.05); a significant reduction of the distance between TVL-upper incisor (1+), TVL-lower lip (Li), and TVL-Pog’ was shown. No statistical differences were observed between the groups in dental and aesthetic outcomes, except for a skeletal increase in LFH (p < 0.05) and in Co-Gn length (p < 0.05), which was statistically significant in the EA group.
Conclusion
In Class II growing patients, the EA induces minor skeletal effects, compared to untreated control patients.
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Ortu E, Pietropaoli D, Cova S, Marci MC, Monaco A. Efficacy of elastodontic devices in overjet and overbite reduction assessed by computer-aid evaluation. BMC Oral Health 2021; 21:269. [PMID: 34001097 PMCID: PMC8130291 DOI: 10.1186/s12903-021-01628-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 05/07/2021] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND This study aimed to verify the efficacy of two elastodontic devices in overjet (OJ) and overbite (OB) reduction during treatment with the Equilibrator Series II (Eptamed) and Occlus-o-Guide (Sweden & Martina) devices. METHOD Sixty patients aged 7-15 years were enrolled in the study, and were divided into test and control groups. The test group included 30 patients (14 males, 16 females; mean age, 10.66 ± 2.12 years) treated with the EQ (Equilibrator) Series II. The control group included 30 patients (15 males, 15 females; mean age, 10.76 ± 2.52 years) treated with the Occlus-o-Guide. The two groups exhibited the same orthodontic features. The orthodontic criteria were: skeletal and dental class II malocclusion (divisions 1 and 2); and the presence of OJ and OB. Evaluation of OJ and OB was performed at two timepoints: T0 (before starting therapy) and T1 (after 1 year). RESULTS At T0, OJ and OB were similar for the two groups; however, at T1, both OJ and OB were significantly lower with the Eptamed device compared to the Occlus-o-Guide device (p = 0.0019). CONCLUSIONS Elastodontic devices improve orthodontic outcomes by aiding orthodontic patient management, diagnosis, and treatment planning, reducing the risk relapse acting on the whole organism and the rehabilitation of the tongue.
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Affiliation(s)
- Eleonora Ortu
- MeSVA Department, Dental Unit, University of L'Aquila, P.Le S. Tommasi, 67100, L'Aquila, Italy.
| | - Davide Pietropaoli
- MeSVA Department, Dental Unit, University of L'Aquila, P.Le S. Tommasi, 67100, L'Aquila, Italy
| | - Samuele Cova
- Cova Samuele, DDS, Freelance, 38023, Cles, Trento, Via Tiberio Claudio, Italy
| | - Maria Chiara Marci
- MeSVA Department, Dental Unit, University of L'Aquila, P.Le S. Tommasi, 67100, L'Aquila, Italy
| | - Annalisa Monaco
- MeSVA Department, Dental Unit, University of L'Aquila, P.Le S. Tommasi, 67100, L'Aquila, Italy
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Lione R, Kiliaridis S, Noviello A, Franchi L, Antonarakis GS, Cozza P. Evaluation of masseter muscles in relation to treatment with removable bite-blocks in dolichofacial growing subjects: A prospective controlled study. Am J Orthod Dentofacial Orthop 2017; 151:1058-1064. [PMID: 28554451 DOI: 10.1016/j.ajodo.2016.10.035] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Revised: 10/01/2016] [Accepted: 10/01/2016] [Indexed: 12/16/2022]
Abstract
INTRODUCTION The aim of this prospective study was to evaluate the effects of posterior bite-blocks on masseter muscles and on facial growth in prepubertal dolichofacial subjects. METHODS The treatment group comprised 21 consecutive prepubertal dolichofacial patients treated with rapid maxillary expansion followed by mandibular removable bite-blocks. Lateral cephalograms and ultrasonographic scans of the masseter muscles were made before (T1) and after (T2) treatment with bite-blocks. The treatment group was compared with a control group of 21 subjects matched for sex, age, and skeletal vertical pattern. An independent samples t test was used to compare the T1 to T2 changes in ultrasonographic scan measurements between the treatment group and the control group, and the T1 to T2 cephalometric changes in the treatment group. Regression analysis was performed to investigate associations between masseter muscle thickness and cephalometric treatment outcomes. RESULTS Masseter muscle thickness showed a statistically significant decrease (-0.7 mm) in the treatment group compared with an increase (+0.6 mm) in the control group. A significant anterior rotation of the mandibular plane was observed in the treatment group as well as significant increases in overbite (1.8 mm) and total posterior facial height (1.5 mm). No significant associations were found between masseter muscle thickness and treatment outcomes apart from a tendency for overbite to increase more in subjects with thicker muscles. CONCLUSIONS Treatment with removable bite-blocks produced a decrease in masseter muscle thickness and a reduction in vertical facial dimensions due to upward and forward rotation of the mandible. No significant correlation was found between the pretreatment masseter muscle thickness and the T1 to T2 cephalometric changes in the treatment group.
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Affiliation(s)
- Roberta Lione
- Department of Clinical Sciences and Translational Medicine, University of Rome "Tor Vergata", Rome, Italy; Department of Dentistry, Università Nostra Signora del Buon Consiglio, Tirana, Albania.
| | | | - Andrea Noviello
- Department of Clinical Sciences and Translational Medicine, University of Rome "Tor Vergata", Rome, Italy
| | - Lorenzo Franchi
- Department of Surgery and Translational Medicine, University of Florence, Florence, Italy; Thomas M. Graber Visiting Scholar, Department of Orthodontics and Pediatric Dentistry, School of Dentistry, University of Michigan, Ann Arbor, Mich
| | | | - Paola Cozza
- Department of Clinical Sciences and Translational Medicine, University of Rome "Tor Vergata", Rome, Italy; Department of Dentistry, Università Nostra Signora del Buon Consiglio, Tirana, Albania
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13
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Verification of the reliability of the three-dimensional virtual presurgical orthodontic diagnostic protocol. J Craniofac Surg 2015; 25:2013-6. [PMID: 25377958 DOI: 10.1097/scs.0000000000001046] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
The precision of presurgical orthodontic diagnostic protocol plays a key role for the success of orthognathic surgery.Recently, the introduction of cone beam computed tomography and the development of digital technologies led to the possibility to create new virtual protocols of diagnostic protocol.The purposes of this study were to describe the virtual presurgical orthodontic diagnostic protocol experimented by the Orthodontics Department of the University of Milan and to assess its reliability by comparing it with the nonvirtual protocol.The study sample was a group of 18 adult patients who required surgical correction of skeletal asymmetric class II or III malocclusion: 9 of them were subjected to the virtual diagnostic protocol, whereas the other 9 were subjected to the traditional one. A comparison between the 2 methods was carried out by evaluating the degree of the discrepancy between setup and presurgical models in both groups. The values of maximum positive deviation, maximum negative deviation, mean deviation, and standard deviation that characterize the points of the superimpositions were considered.An optimal superimposition (>75%) between the scanning of the setup and presurgical models was obtained for all subjects except for 2 patients with asymmetry. The analysis of the punctual deviation variables did not show statistically significant differences between the techniques.The study suggested a high precision for both diagnostic protocols, and the reliability of the 2 methods is comparable. However, the virtual protocol has several advantages such as quantity of information obtainable, repeatability, and speed of execution.
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Maspero C, Galbiati G, Giannini L, Farronato G. Sagittal and vertical effects of transverse sagittal maxillary expander (TSME) in three different malocclusion groups. Prog Orthod 2015; 16:6. [PMID: 25907431 PMCID: PMC4409608 DOI: 10.1186/s40510-015-0075-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2014] [Accepted: 02/16/2015] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The aim of this retrospective study was to cephalometrically evaluate the skeletal and dental effects of the transverse sagittal maxillary expander (TSME), for the correction of sagittal and transverse maxillary deficiency in class I, II, and III malocclusions. METHODS The sample for this retrospective study included 45 patients (mean age, 8.4 years; 26 females, 19 males; 15 skeletal class I subjects, 15 skeletal class II subjects, and 15 skeletal class III subjects) with maxillary bilateral cross-bite. For each patient, a lateral cephalogram was obtained before treatment and at the end of the retention period. Changes in the groups during the observation period were calculated, compared, and statistically analyzed with a t-test. RESULTS The cephalometric values before T0 and T1 showed significant changes. CONCLUSIONS The TSME can produce skeletal changes due to the transverse force and sagittal effects on the maxillary alveolar process. These modifications have benefic effects in classes I, II, and III. The data obtained in this study permit us to underline the fact that TSME can be used in all of the skeletal classes, with good vertical and sagittal results.
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Affiliation(s)
- Cinzia Maspero
- U.O.C. Chirurgia Maxillo-facciale ed Odontostomatologia (dir: AB. Giannì) Fondazione Cà Granda IRCCS Ospedale Maggiore Policlinico, University of Milan, 20122, Milan, Italy.
| | - Guido Galbiati
- U.O.C. Chirurgia Maxillo-facciale ed Odontostomatologia (dir: AB. Giannì) Fondazione Cà Granda IRCCS Ospedale Maggiore Policlinico, University of Milan, 20122, Milan, Italy.
| | - Lucia Giannini
- U.O.C. Chirurgia Maxillo-facciale ed Odontostomatologia (dir: AB. Giannì) Fondazione Cà Granda IRCCS Ospedale Maggiore Policlinico, University of Milan, 20122, Milan, Italy.
| | - Giampietro Farronato
- Maxillo-Facial and Odontostomatology Unit Fondazione Cà Granda IRCCS Ospedale Maggiore Policlinico, University of Milan, 20122, Milan, Italy. .,UOC Chirurgia Maxillofacciale e Odontostomatologia, Fondazione IRCCS Cà Granda - Ospedale Maggiore Policlinico, University of Milan, Commenda 10, Milano, 20122, Italy.
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15
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Trattamento ortodontico-chirurgico: valutazione elettrognatografica con tre strumenti differenti. DENTAL CADMOS 2014. [DOI: 10.1016/s0011-8524(14)70248-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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16
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Farronato G, Assandri F, Miani A, Pereira P, Solidoro L. Gestione del dolore e terapia farmacologica complessa nei pazienti affetti da patie disfunzionali. DENTAL CADMOS 2014. [DOI: 10.1016/s0011-8524(14)70246-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Farronato G, Giannini L, Galbiati G, Stabilini SA, Maspero C. Orthodontic-surgical treatment: neuromuscular evaluation in open and deep skeletal bite patients. Prog Orthod 2013; 14:41. [PMID: 24325989 PMCID: PMC4394416 DOI: 10.1186/2196-1042-14-41] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2013] [Accepted: 09/18/2013] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The aim of this study was to compare electromyographic data of two groups of patients (open and deep skeletal bite) before and after surgical orthodontic treatment. METHODS All patients who underwent orthognathic surgery at the Department of Orthodontics (University of Milan) were subjected to periodic electromyographic evaluation of the masticatory muscles (masseter and anterior temporal muscles) and to electrokinesiographic evaluation of mandibular movements. The sample comprised 72 patients (35 open skeletal bite patients and 37 deep skeletal bite patients) at the end of craniofacial growth. The electromyographic instruments used in the study included a Freely and a K6-I electromyograph. Statistical evaluation was carried out with Student's t tests for independent samples. RESULTS Lots of differences between open and deep skeletal bite patients have been underlined by the analysis of the electromyographic data obtained. These results have been obtained with both electromyographic systems. Muscular activity in microvolts is higher in deep skeletal bite patients at the beginning of the treatment than in open bite ones, but during the following phases of the treatment, the two values became similar. CONCLUSIONS Morphologic differences between open and deep bite patients can also be demonstrated by instrumental examinations, and their correction after surgical treatment is observable on electromyographic and electrognatographic exams.
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Affiliation(s)
- Giampietro Farronato
- Fondazione IRCCS Cà Granda, Department of Orthodontics, University of Milan, 20100 Milan, Italy
| | - Lucia Giannini
- Fondazione IRCCS Cà Granda, Department of Orthodontics, University of Milan, 20100 Milan, Italy
| | - Guido Galbiati
- Fondazione IRCCS Cà Granda, Department of Orthodontics, University of Milan, 20100 Milan, Italy
| | - Santo Andrea Stabilini
- Fondazione IRCCS Cà Granda, Department of Orthodontics, University of Milan, 20100 Milan, Italy
| | - Cinzia Maspero
- Fondazione IRCCS Cà Granda, Department of Orthodontics, University of Milan, 20100 Milan, Italy
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