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Ateş EM, Pamukçu H, Koç O, Altıparmak N. Effects of different expansion appliances and surgical incisions on maxillary expansion: A finite element analysis. JOURNAL OF STOMATOLOGY, ORAL AND MAXILLOFACIAL SURGERY 2024:101936. [PMID: 38849083 DOI: 10.1016/j.jormas.2024.101936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 05/07/2024] [Accepted: 06/02/2024] [Indexed: 06/09/2024]
Abstract
PURPOSE This study aims to assess the impact of different surgical techniques and three expansion appliances on maxillary expansion in adults using finite element analysis (FEA), with a focus on maxillary displacement and stress on surrounding structures. METHODS Seven different FEA models were created to compare different surgical techniques and three different expansion appliances. Model I represented a bone-supported appliance without surgical assistance. Model II, Model III, and Model IV were surgically assisted rapid palatal expansion (SARPE) models without pterygomaxillary suture disjunction (PMD). Model V, Model VI, and Model VII were SARPE models with PMD. RESULTS The largest displacement at the anterior nasal spine (ANS) was recorded for Model II (2.95 mm). For the posterior nasal spine (PNS), the highest displacement was observed in Models V, VI, VII (2.50 mm), with the lowest in Model III (0.79 mm). Stress analysis revealed the highest stress in Model I, with models featuring PMD displaying nearly zero stress at all anatomical points, highlighting distinct expansion patterns and stress distributions between models with and without PMD. CONCLUSION SARPE models with PMD demonstrated a parallel expansion of the maxilla with minimal stress, while the miniscrew assisted rapid maxillary expansion (MARPE) model displayed transverse rotation. SARPE models without PMD exhibited a V-shaped expansion pattern. SARPE models with PMD represent an optimal approach for achieving uniform expansion and minimizing stress, with stress levels nearly negligible at all anatomical points in models with PMD.
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Affiliation(s)
- Ece Mersan Ateş
- Department of Orthodontics, School of Dentistry, Baskent University, Ankara, Turkey
| | - Hande Pamukçu
- Department of Orthodontics, School of Dentistry, Baskent University, Ankara, Turkey.
| | - Osman Koç
- Faculty of Mechanical Engineering, Yildiz Technical University, Istanbul, Turkey
| | - Nur Altıparmak
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Baskent University, Ankara, Turkey
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da Silva AV, da Rosa BM, Matje PRB, Rizzatto SMD, de Oliveira RB, Haas OL, de Menezes LM. Effects of SARPE and MISMARPE on correction of transverse maxillary deficiency: A preliminary comparative evaluation. Orthod Craniofac Res 2024; 27:332-338. [PMID: 37728033 DOI: 10.1111/ocr.12712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 08/24/2023] [Accepted: 09/05/2023] [Indexed: 09/21/2023]
Abstract
AIM The present study was designed to compare, on cone-beam computed tomography imaging, the skeletal and dental effects of the SARPE (Surgically assisted rapid palatal expansion) and MISMARPE (Minimally Invasive Surgical and Miniscrew-Assisted Rapid Palatal Expansion) techniques. MATERIALS AND METHODS The sample of adult patients with transverse maxillary deficiency (TMD) was divided into two groups, and scans were obtained preoperatively (T0) and immediately after completion of expansion (T1). The posterior and anterior linear transverse distances of the maxilla and the angulation of the maxillary first molars were evaluated. The data were entered into a generalized estimating equations model to verify the postoperative effects of the different techniques. RESULTS None of the techniques caused any appreciable change in the angulation of the molars. The skeletal changes were similar, with significantly greater gains in the nasal fossa and intermaxillary distance when using the MISMARPE. CONCLUSION The technique can be an effective and lower morbidity alternative to SARPE.
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Affiliation(s)
- Andreza Vieira da Silva
- Postgraduate Program in Dentistry, School of Health and Life Sciences, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, RS, Brazil
- Department of Orthodontics, School of Health and Life Sciences, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Bibiana Mello da Rosa
- Postgraduate Program in Dentistry, School of Health and Life Sciences, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, RS, Brazil
- Department of Oral and Maxillofacial Surgery, São Lucas Hospital of Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, RS, Brazil
- Private Practice at Belle & Haas OrthoFacial Surgery, Porto Alegre, RS, Brazil
| | - Paulo R B Matje
- Department of Orthodontics, School of Health and Life Sciences, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Susana Maria Deon Rizzatto
- Department of Orthodontics, School of Health and Life Sciences, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Rogério Belle de Oliveira
- Department of Oral and Maxillofacial Surgery, São Lucas Hospital of Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, RS, Brazil
- Private Practice at Belle & Haas OrthoFacial Surgery, Porto Alegre, RS, Brazil
| | - Orion L Haas
- Department of Oral and Maxillofacial Surgery, São Lucas Hospital of Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, RS, Brazil
- Private Practice at Belle & Haas OrthoFacial Surgery, Porto Alegre, RS, Brazil
| | - Luciane Macedo de Menezes
- Department of Orthodontics, School of Health and Life Sciences, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, RS, Brazil
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Koç O, Koç N, Jacob HB. Effect of different palatal expanders with miniscrews in surgically assisted rapid palatal expansion: A non-linear finite element analysis. Dental Press J Orthod 2024; 29:e2423195. [PMID: 38451569 PMCID: PMC10914319 DOI: 10.1590/2177-6709.29.1.e2423195.oar] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Accepted: 12/21/2023] [Indexed: 03/08/2024] Open
Abstract
INTRODUCTION Surgically assisted rapid palatal expansion (SARPE) has been the treatment of choice in subjects presenting skeletally mature sutures. OBJECTIVE The purpose of this study was to analyze stress distribution and displacement of the craniofacial and dentoalveolar structures resulting from three types of palatal expanders with surgical assistance using a non-linear finite element analysis. MATERIAL AND METHODS Three different palatal expanders were designed: Model-I (tooth-bone-borne type containing four miniscrews), Model-II (tooth-bone-borne type containing two miniscrews), and Model-III (bone-borne type containing four miniscrews). A Le Fort I osteotomy was performed, and a total of 5.0 mm palatal expansion was simulated. Nonlinear analysis (three theory) method (geometric nonlinear theory, nonlinear contact theory, and nonlinear material methods) was used to evaluate stress and displacement of several craniofacial and dentoalveolar structures. RESULTS Regardless of the maxillary expander device type, surgically assisted rapid palatal expansion produces greater anterior maxillary expansion than posterior (ANS ranged from 2.675 mm to 3.444 mm, and PNS ranged from 0.522 mm to 1.721 mm); Model-I showed more parallel midpalatal suture opening pattern - PNS/ANS equal to 54%. In regards to ANS, Model-II (1.159 mm) and Model-III (1.000 mm) presented larger downward displacement than Model-I (0.343 mm). PNS displaced anteriorly more than ANS for all devices; Model-III presented the largest amount of forward displacement for PNS (1.147 mm) and ANS (1.064 mm). All three type of expanders showed similar dental displacement, and minimal craniofacial sutures separation. As expected, different maxillary expander designs produce different primary areas and levels of stresses (the bone-borne expander presented minimal stress at the teeth and the tooth-bone-borne expander with two miniscrews presented the highest). CONCLUSIONS Based on this finite element method/finite element analysis, the results showed that different maxillary expander designs produce different primary areas and levels of stresses, minimal displacement of the craniofacial sutures, and different skeletal V-shape expansion.
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Affiliation(s)
- Osman Koç
- Yildiz Technical University, Department of Mechanical Engineering (Yildiz, Istanbul/Turkey)
| | - Nagihan Koç
- Independent researcher (Yildiz, Istanbul/Turkey)
| | - Helder Baldi Jacob
- The University of Texas Health Science Center Houston School of Dentistry, Department of Orthodontics (Houston/TX, USA)
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Feng Z, Si M, Fan H, Zhang Y, Yuan R, Hao Z. Evolution, current status, and future trends of maxillary skeletal expansion: a bibliometric analysis. Clin Oral Investig 2023; 28:14. [PMID: 38129341 PMCID: PMC10739547 DOI: 10.1007/s00784-023-05430-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 11/20/2023] [Indexed: 12/23/2023]
Abstract
OBJECTIVES The study aims to conduct a bibliometric analysis on maxillary skeletal expansion to elucidate the evolution and current status and predict future research hotspots and trends. MATERIAL AND METHODS A search was conducted in the Web of Science Core Collection at the University of Hong Kong's electronic library using the query "(TS = maxillary expansion) AND (TS = skeletal expansion)." The resulting literature data were imported into CiteSpace 6.2.R4 and VOS viewer software to analyze authorship, countries, institutions, keywords, etc. RESULTS: A total of 923 articles were analyzed. The research in this field has shown a steady growth, with a significant increase since 2019. The USA and Italy have played prominent roles in contributing to the publication volume and strengthening collaborative exchanges. Clustering labels provide directions for in-depth analysis of the literature. CONCLUSIONS (1) MARPE (miniscrew-assisted rapid palatal expansion) and SARME (surgically assisted rapid maxillary expansion) have gained widespread attention and become research hotspots due to their applicability in adults whose growth and development have ceased, while still producing favorable skeletal effects. (2) In addition to widening the maxillary arch, maxillary expansion techniques have shown significant effects on increasing nasal cavity width and volume. However, there is still controversy regarding whether they can effectively improve the deviated nasal septum. (3) Maxillary skeletal expansion techniques have been shown to increase upper airway volume and improve breathing, making them potentially valuable in the treatment of obstructive sleep apnea (OSA). CLINICAL RELEVANCE This study can provide cutting-edge clinical recommendations for healthcare professionals to better formulate clinical strategies.
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Affiliation(s)
- Zhiyuan Feng
- Department of Orthodontics, Shanxi Provincial People's Hospital, The Fifth Clinical Medical College of Shanxi Medical University, Taiyuan, China.
| | - Minmin Si
- School and Hospital of Stomatology, Shanxi Medical University, Taiyuan, China
| | - Hao Fan
- Department of Orthodontics, Shanxi Provincial People's Hospital, The Fifth Clinical Medical College of Shanxi Medical University, Taiyuan, China
| | - Yin Zhang
- School of Information Engineering, Chang'an University, Xi'an, China
| | - Rui Yuan
- School and Hospital of Stomatology, Shanxi Medical University, Taiyuan, China
| | - Zhaonan Hao
- School and Hospital of Stomatology, Shanxi Medical University, Taiyuan, China
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Tomazi FHS, Conci RA, Heitz C, Noritomi PY, de Menezes LM, de Lima EMS, Teixeira ER. The Hyrax appliance with tooth anchorage variations in surgically assisted rapid maxillary expansion: a finite element analysis. Oral Maxillofac Surg 2023; 27:647-654. [PMID: 35971005 DOI: 10.1007/s10006-022-01111-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 08/10/2022] [Indexed: 11/28/2022]
Abstract
PURPOSE It is known that a correct transverse maxillary dimension is a key factor for a stable occlusion, which brings functional and esthetic benefits for the patient. In patients presenting maxillary atresia and the completion of bone growth, a highly recommended option for correction is the surgically assisted rapid maxillary expansion (SARME) associated with the Hyrax appliance. The objective of this study was to evaluate the influence of tooth anchorage variations of the Hyrax appliance in SARME through finite element analysis, evaluating which anchorage option might be associated with more effective orthopedic results with less undesired side effects. METHODS Five different dental anchoring conditions for the Hyrax appliance were simulated through FE analysis applying premolars and molars as anchorage, having the same force applied by the activation of the Hyrax screw (0.5 mm) in all groups. The maxillary displacement results (axes X, Y, and Z) and generated stresses for both teeth and maxillary bone were calculated and represented using a color scale. RESULTS All groups presented significant bone displacement and stress concentration on anchoring teeth, with the group presenting anchorage in the 1st and 2nd molars showing the greatest maxillary horizontal displacement (axis X) and suggesting the lowest tendency of dental vestibular inclination. CONCLUSIONS Variations in dental anchorage might substantially affect the maxillary bone and teeth displacement outcome. The protocol for the Hyrax apparatus in SARME applying the 1st and 2nd molars as anchorage might generate less tilting and inclination of the anchoring teeth.
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Affiliation(s)
- Flavio Henrique Silveira Tomazi
- School of Health and Life Sciences, Pontifical Catholic University of Rio Grande Doo Sul, Av. Ipiranga 6681, Predio 06 Bairro: Partenon, Porto Alegre, RS, 90619-900, Brazil
| | - Ricardo Augusto Conci
- Department of Oral Surgery, State University of Western Parana, Cascavel, Parana, Brazil
| | - Claiton Heitz
- School of Health and Life Sciences, Pontifical Catholic University of Rio Grande Doo Sul, Av. Ipiranga 6681, Predio 06 Bairro: Partenon, Porto Alegre, RS, 90619-900, Brazil
| | - Pedro Yoshito Noritomi
- 3D Technologies Division, Renato Archer Technology Information Center, Campinas, São Paulo, Brazil
| | - Luciane Macedo de Menezes
- School of Health and Life Sciences, Pontifical Catholic University of Rio Grande Doo Sul, Av. Ipiranga 6681, Predio 06 Bairro: Partenon, Porto Alegre, RS, 90619-900, Brazil
| | - Eduardo Martinelli Santayana de Lima
- School of Health and Life Sciences, Pontifical Catholic University of Rio Grande Doo Sul, Av. Ipiranga 6681, Predio 06 Bairro: Partenon, Porto Alegre, RS, 90619-900, Brazil
| | - Eduardo Rolim Teixeira
- School of Health and Life Sciences, Pontifical Catholic University of Rio Grande Doo Sul, Av. Ipiranga 6681, Predio 06 Bairro: Partenon, Porto Alegre, RS, 90619-900, Brazil.
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Zeng W, Yan S, Yi Y, Chen H, Sun T, Zhang Y, Zhang J. Long-term efficacy and stability of miniscrew-assisted rapid palatal expansion in mid to late adolescents and adults: a systematic review and meta-analysis. BMC Oral Health 2023; 23:829. [PMID: 37924088 PMCID: PMC10623697 DOI: 10.1186/s12903-023-03574-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Accepted: 10/24/2023] [Indexed: 11/06/2023] Open
Abstract
BACKGROUND The purpose of this study is to investigate the long-term efficacy and stability of Miniscrew-assisted Rapid Palatal Expansion (MARPE), including its primary outcomes, namely the nasomaxillary complex transverse skeletal and dental expansion, and related secondary outcomes. METHODS Electronic databases and manual literature searches, up to October 31, 2022, were performed. The eligibility criteria were the following: studies on patients with transverse maxillary deficiency treated with MARPE in adults and adolescents over 13.5 years of age. RESULTS Ultimately, twelve articles were included in the analysis, one prospective and eleven retrospective observational studies. Five studies showed a moderate risk of bias, while the remaining seven studies were at a serious risk of bias. The GRADE quality of evidence was very low. MARPE is an effective treatment modality for transverse maxillary deficiency (mean success rate: 93.87%). Patients showed increased mean in the skeletal and dental transverse expansion. The basal bone composition, mean alveolar bone and mean dental expansion accounted for 48.85, 7.52, and 43.63% of the total expansion, respectively. There was a certain degree of skeletal and dental relapse over time. MARPE could also cause dental, alveolar, and periodontal side effects, and have an impact on other craniofacial bones, upper airway, and facial soft tissue. CONCLUSIONS MARPE is an effective treatment for transverse maxillary deficiency, with a high success rate and a certain degree of skeletal and dental relapse over time.
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Affiliation(s)
- Weiqian Zeng
- Department of Orthodontics, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Research Center of Dental Materials and Oral Tissue Regeneration & Shandong Provincial Clinical Research Center for Oral Diseases, No.44-1 Wenhua Road West, 250012, Jinan, Shandong, China
| | - Shuyun Yan
- The Second Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong, China
| | - Yating Yi
- Department of Orthodontics, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Research Center of Dental Materials and Oral Tissue Regeneration & Shandong Provincial Clinical Research Center for Oral Diseases, No.44-1 Wenhua Road West, 250012, Jinan, Shandong, China
| | - Hao Chen
- Department of Orthodontics, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Research Center of Dental Materials and Oral Tissue Regeneration & Shandong Provincial Clinical Research Center for Oral Diseases, No.44-1 Wenhua Road West, 250012, Jinan, Shandong, China
| | - Tongke Sun
- Department of Orthodontics, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Research Center of Dental Materials and Oral Tissue Regeneration & Shandong Provincial Clinical Research Center for Oral Diseases, No.44-1 Wenhua Road West, 250012, Jinan, Shandong, China
| | - Yimeng Zhang
- Department of Orthodontics, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Research Center of Dental Materials and Oral Tissue Regeneration & Shandong Provincial Clinical Research Center for Oral Diseases, No.44-1 Wenhua Road West, 250012, Jinan, Shandong, China
| | - Jun Zhang
- Department of Orthodontics, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Research Center of Dental Materials and Oral Tissue Regeneration & Shandong Provincial Clinical Research Center for Oral Diseases, No.44-1 Wenhua Road West, 250012, Jinan, Shandong, China.
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Chen R. Effects of rapid maxillary expansion on anchorage alveolar bone meta-analysis. Acta Odontol Scand 2023; 81:499-507. [PMID: 37074788 DOI: 10.1080/00016357.2023.2199862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 03/31/2023] [Indexed: 04/20/2023]
Abstract
PURPOSE Rapid maxillary expansion (RME) is a routine method for correcting transverse maxillary deficiency. This paper investigated the effect of RME on anchorage alveolar bone and examined the differences between micro-implant-assisted RME and conventional RME. METHODS Relevant articles were selected from the PubMed, EMBASE and Cochrane Central Register of Controlled Trials databases. Review Manager software (v.5.3) was used for the pooled analysis and Cochran Q and I2 statistic tests were used to assess the heterogeneity. RESULTS Following conventional RME, the distal buccal alveolar bone thickness and the mesiobuccal alveolar thickness of the maxillary first molars were significantly reduced. Hyrax (standard mean difference [SMD]: -0.93, 95% confidence interval [CI]: -1.20-0.66) and Haas procedures (SMD: -0.88, 95% CI: -1.40-0.36) significantly reduced the buccal vertical alveolar height of the maxillary first molars. Similar results were obtained for the maxillary first premolars following RME. The thickness of the buccal alveolar bone decreased with conventional RME compared to when using the method assisted by micro-implants. CONCLUSIONS Conventional RME can reduce the thickness and vertical height of maxillary alveolar bone, and there is less loss of alveolar bone when using micro-implant-assisted RME. Further research is needed to validate the findings.
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Affiliation(s)
- Ruijun Chen
- Department of Orthodontic, Beijing Daxing Xingye Dental Hospital, Beijing, China
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Wiechmann D. Novel concept for posterior crossbite correction : Preliminary results. J Orofac Orthop 2023:10.1007/s00056-023-00468-0. [PMID: 37142772 DOI: 10.1007/s00056-023-00468-0] [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: 01/12/2023] [Accepted: 03/14/2023] [Indexed: 05/06/2023]
Abstract
PURPOSE The efficiency of dentoalveolar compensation involving both jaws for posterior crossbite correction using computer-aided design/computer-aided manufacturing (CAD/CAM) expansion and compression archwires was evaluated. Treatment outcome was tested against the null hypothesis that the transverse correction achieved would be significantly smaller than planned. METHODS This retrospective study included 64 patients (mean age 23.5 years, median 17.0, minimum/maximum: 9.0/63.0, standard deviation 13.7) with uni- or bilateral posterior crossbite. In all consecutively debonded patients, expansion and/or compression archwires were used for dentoalveolar correction involving both jaws. Plaster casts prior to (T1) and following treatment (T2) with completely customized lingual appliances (CCLA) were compared with the treatment plan represented by an individual target set-up. The statistical analysis was carried out using the Schuirmann TOST (two one-sided t‑tests) equivalence test on the basis of a one-sample t‑test with α = 0.025 to one side. The non-inferiority margin was set at δ = 0.5 mm. RESULTS All posterior crossbites could be corrected by dentoalveolar compensation involving both jaws. The mean total correction achieved was 6.9 mm (mean maxillary expansion: 4.3 mm/mean mandibular compression: 2.6 mm) with a maximum of 12.8 mm. The transverse corrections achieved in both arches at T2 were equivalent to the planned corrections in the set-up (p < 0.001). CONCLUSION The results of this study indicate that CAD/CAM expansion and compression archwires can be an efficient tool to achieve the desired correction in patients with a posterior crossbite even in more severe cases.
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Affiliation(s)
- Dirk Wiechmann
- Department of Orthodontics, Hannover Medical School (MHH), Hannover, Germany.
- Private Practice, Lindenstr. 44, 49152, Bad Essen, Germany.
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Shayani A, Merino-Gerlach MA, Garay-Carrasco IA, Navarro-Cáceres PE, Sandoval-Vidal HP. Midpalatal Suture Maturation Stage in 10- to 25-Year-Olds Using Cone-Beam Computed Tomography-A Cross-Sectional Study. Diagnostics (Basel) 2023; 13:diagnostics13081449. [PMID: 37189552 DOI: 10.3390/diagnostics13081449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 02/01/2023] [Accepted: 02/03/2023] [Indexed: 05/17/2023] Open
Abstract
In this study, we aimed to evaluate the frequency of midpalatal maturational stages in a Chilean urban sample of adolescents, post-adolescents and young adults, associated with chronological age and sex, by assessing CBCT scan images. Tomographic images in axial sections of the midpalatal sutures from 116 adolescents and young adults (61 females and 55 males, 10-25 years old) were classified according to their morphologic characteristics in five maturational stages (A, B, C, D and E), as proposed by Angelieri et al. The sample was divided into three groups: adolescents, post-adolescents and young adults. Three previously calibrated examiners (radiologist, orthodontist and general dentist) analyzed and classified the images. Stages A, B and C were considered to be an open midpalatal suture, and D and E were considered to be a partially or totally closed midpalatal suture. The most frequent stage of maturation was D (37.9%), followed by C (24%) and E (19.6%). The possibility of finding closed midpalatal sutures in individuals of 10 to 15 years was 58.4%, and in subjects aged 16 to 20 and 21 to 25 years, it was 51.7% and 61.7%, respectively. In males, Stages D and E were present in 45.4%; for females, this prevalence was 68.8%. Individual assessment of the midpalatal suture in each patient is of crucial importance before making the clinical decision of which is the best maxillary expansion method. Due to the extensive calibration and training required, it is advisable to always request a report from a radiologist. Individual evaluation with 3D imaging is recommended because of the great variability observed in the ossification of midpalatal sutures in adolescents, post-adolescents and young adults.
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Affiliation(s)
- Anis Shayani
- Master Program in Dental Science, Faculty of Dentistry, Universidad de La Frontera, Temuco 4780000, Chile
- School of Dentistry, Faculty of Medicine, Universidad Austral de Chile, Valdivia 5090000, Chile
| | | | | | - Pablo Eliseo Navarro-Cáceres
- Centro de Investigación en Ciencias Odontológicas (CICO), Departamento de Odontología Integral de Adultos, Facultad de Odontología, Universidad de La Frontera, Temuco 4780000, Chile
- Universidad Autónoma de Chile, Temuco 4780000, Chile
| | - Héctor Paulo Sandoval-Vidal
- Department of Pediatric Dentistry and Orthodontics, Faculty of Dentistry, Universidad de La Frontera, Temuco 4780000, Chile
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Alveolar bone changes after tooth-borne surgically assisted rapid maxillary expansion: A three-dimensional study. JOURNAL OF STOMATOLOGY, ORAL AND MAXILLOFACIAL SURGERY 2023; 124:101331. [PMID: 36400391 DOI: 10.1016/j.jormas.2022.11.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 11/02/2022] [Accepted: 11/14/2022] [Indexed: 11/17/2022]
Abstract
INTRODUCTION Surgically assisted rapid maxillary expansion (SARME) with a dental-anchorage appliance can induce dental and skeletal complications adjacent to the teeth supporting the device. The purpose of this study was to quantify the dentoskeletal changes observed after SARME using a tooth-borne device. MATERIALS AND METHODS Cone beam CT images from 39 patients were compared between the preoperative (T1) and the postoperative period (T2). The mean time to complete the second imaging was 13.8 ± 6.9 months after the SARME. Dental and bone parameters were assessed: the vestibular bone height (BH), the bone thickness (BT), the existence of fenestrations, and the root resorption at the level of first upper premolar (P1) and the first upper molar (M1). The maxillary expansion parameters were also collected. RESULTS Both vertical and horizontal vestibular bone loss were observed mainly in the first upper molar sectors: The BT decreased from 0.93 ± 0.50 mm to 0.53 ± 0.51 mm (p < 0.0001) and the BH decreased from 1.84 ± 1.05 mm to 0.93 ± 1.02 mm (p < 0.0001) for tooth #16. The bone loss also affected the first upper premolars but in a more limited manner. Significant fenestrations were observed at the apex of the mesio-vestibular root of teeth #16 and #26. We noted significant root resorption affecting the mesio-, disto-vestibular and palatal roots of tooth #16 (mean reductions of 0.32, 0.35, and 0.55 mm, respectively; p < 0.05), and the palatal root of tooth # 26 (loss of 0.58 mm; p = 0.004). The mean bone expansion was 3.76 mm and 1.41 mm at the premolar and molar levels, respectively (p < 0.0001), while a mean 6.24 mm and 4.23 mm inter-cuspid expansion was noted at the P1 and M1 levels (p < 0.0001). CONCLUSION Our results document the vestibular bone changes and low root resorption, mostly in the molar sectors, associated with SARME using dental-anchorage devices.
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Evaluation of Masticatory Muscles in Adult Patients with Maxillary Hypoplasia Treated with Surgically Assisted Rapid Maxillary Expansion (SARME): A Retrospective Study. J Clin Med 2023; 12:jcm12020607. [PMID: 36675537 PMCID: PMC9864954 DOI: 10.3390/jcm12020607] [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] [Received: 12/19/2022] [Revised: 01/05/2023] [Accepted: 01/10/2023] [Indexed: 01/15/2023] Open
Abstract
Aim: The aim of the present study was to investigate modifications in electromyographic activity of temporal and masseter muscles before and after surgically assisted rapid maxillary expansion (SARME) in adult subjects. Materials and Methods: Data from 20 patients with unilateral posterior crossbite were selected retrospectively from the Orthodontics Department of the University of Genoa and the Department of Biomedical Surgical and Dental Sciences of the University of Milan, Fondazione IRCCS Ca’ Granda, Ospedale Maggiore Policlinico Milan. Inclusion criteria were set as skeletal class I; adult patients (age > 18); good general health; patients with a transverse maxillary deficiency with unilateral posterior crossbite and maxillary constriction ≥ 5 mm; Superficial electromyographic (EMG) examinations at T0 and T1. Exclusion criteria were smoking, metabolic bone diseases (e.g., hyperparathyroidism, vitamin C deficiency), chronic use of corticoids before or during treatment, parafunctional habits (e.g., bruxism), and temporomandibular joint dysfunction. The Shapiro−Wilk test was performed to check whether the data were normally distributed. Differences for each variable before and after SARME were analyzed with a paired t-test (p < 0.05). Results: The statistical analysis demonstrated no statistically significant differences between the EMG values taken before and after SARME regarding the standardized electrical activity of the masticatory muscles (masseter and anterior temporalis (p > 0.05)). Conclusions: Considering the specific conditions of this study, it can be concluded that SARME did not alter the EMG activity of the masseter and temporal muscles. The present study has shown that the masticatory musculature evaluated after approximately 8 months of therapy can adapt well to SARME.
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Lin JH, Li C, Wong H, Chamberland S, Le AD, Chung CH. Asymmetric Maxillary Expansion Introduced by Surgically Assisted Rapid Palatal Expansion: A Systematic Review. J Oral Maxillofac Surg 2022; 80:1902-1911. [PMID: 36113583 DOI: 10.1016/j.joms.2022.08.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 08/12/2022] [Indexed: 11/23/2022]
Abstract
PURPOSE A commonly reported complication of surgically assisted rapid palatal expansion (SARPE) that has not been explored extensively is uneven expansion between left and right sides, which requires secondary surgery for correction. This systematic review aims to analyze the prevalence and potential causes of asymmetric expansion in the transverse dimension after SARPE to guide the clinical practice. METHODS Electronic databases and manual search were used to search for original articles published on SARPE on March 11, 2022. Original human studies that recorded the number and percentage of asymmetric expansion after two-piece SARPE were included. The 2020 Preferred Reporting Items for Systemic Reviews and Meta-Analyses guideline was implemented for the quality assessment and data analysis of the included articles. The study was registered at the International Prospective Register of Systematic Reviews under the number CRD42022300782. RESULTS After applying inclusion and exclusion criteria, 13 articles were included in the final review. The risk of bias was high in 8 studies and medium in the other 5 studies. Overall, the prevalence of asymmetric expansion in the transverse dimension (different amount of expansion between left and right sides) was 7.52%, with 12.90% of patients involved receiving a second surgery for correction. Expander design did not significantly affect the rate of asymmetry expansion. Pterygomaxillary fissure release significantly increased the rate of asymmetry expansion (11.02% vs 5.08%, P < .001). In comparison, lateral nasal wall osteotomy (4.26% vs 14.77%, P < .001) and release of the nasal septum (5.22% vs 17.15%, P < .001) significantly lowered the rate of asymmetry expansion, respectively. CONCLUSIONS Asymmetric dentoskeletal expansion between left and right sides is a common complication of SARPE procedures, mostly caused by variations in surgical cuts. However, the risk of bias in currently available publications is high. Further studies are warranted to fully understand the causes of asymmetric expansion.
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Affiliation(s)
- Jia-Hong Lin
- Orthodontic Resident, Department of Orthodontics, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA
| | - Chenshuang Li
- Assistant Professor, Department of Orthodontics, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA.
| | - Hilary Wong
- Dental Student, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA
| | | | - Anh D Le
- Chair And Norman Vine Endowed Professor Of Oral Rehabilitation, Department of Oral and Maxillofacial Surgery/Pharmacology, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA
| | - Chun-Hsi Chung
- Associate Professor and Chauncey M. F. Egel Endowed Chair and Director, Department of Orthodontics, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA
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Non-Surgical Transversal Dentoalveolar Compensation with Completely Customized Lingual Appliances versus Surgically Assisted Rapid Palatal Expansion in Adults-The Amount of Posterior Crossbite Correction. J Pers Med 2022; 12:jpm12111893. [PMID: 36422069 PMCID: PMC9694179 DOI: 10.3390/jpm12111893] [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: 09/18/2022] [Revised: 11/07/2022] [Accepted: 11/07/2022] [Indexed: 11/16/2022] Open
Abstract
The aim of this study was to compare the crossbite correction of a group (n = 43; f/m 19/24; mean age 27.6 ± 9.5 years) with surgically assisted rapid palatal expansion (SARPE) versus a non-surgical transversal dentoalveolar compensation (DC) group (n = 38; f/m 25/13; mean age 30.4 ± 12.9 years) with completely customized lingual appliances (CCLA). Arch width was measured on digital models at the canines (C), second premolars (P2), first molars (M1) and second molars (M2). Measurements were obtained before treatment (T0) and at the end of lingual treatment (T1) or after orthodontic alignment prior to a second surgical intervention for three-dimensional bite correction. There was no statistically significant difference (p > 0.05) in the amount of total crossbite correction between the SARPE and DC-CCLA group at C, P2, M1 and M2. Maxillary expansion was greater in the SARPE group and mandibular compression was greater in the DC-CCLA group. Crossbite correction in the DC-CCLA group was mainly a combination of maxillary expansion and mandibular compression. Dentoalveolar compensation with CCLAs as a combination of maxillary expansion and mandibular compression seems to be a clinically effective procedure to correct a transverse maxillo-mandibular discrepancy without the need for surgical assistance.
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Koç O, Jacob HB. Surgically assisted rapid palatal expansion: is the pterygomaxillary disjunction necessary? A finite element study. Semin Orthod 2022. [DOI: 10.1053/j.sodo.2022.10.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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15
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A Full Computerized Workflow for Planning Surgically Assisted Rapid Palatal Expansion and Orthognathic Surgery in a Skeletal Class III Patient. Case Rep Dent 2022; 2022:6413898. [PMID: 36312572 PMCID: PMC9605851 DOI: 10.1155/2022/6413898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Accepted: 10/05/2022] [Indexed: 01/24/2023] Open
Abstract
In the present case report, we present and discuss the digital workflow involved in the orthodontic/orthognathic combined treatment of a skeletal malocclusion correction in a 17-year-old male patient affected by a skeletal class III, facial asymmetry, sagittal and transversal deficiency of the medium third of the skull, dental crowding, and bilateral cross-bite. The first stage of the treatment involved surgically assisted rapid palatal expansion and occlusal decompensation, using fixed self-ligating appliance. An orthodontic software package (i.e., Dolphin 3D Surgery module) was used to perform virtual treatment objective evaluation by integrating data from cone beam computer tomography acquisition, intraoral scan, and extraoral photographs. The software allowed a comprehensive evaluation of skeletal, dento-alveolar, and soft-tissue disharmonies, qualitative and quantitative simulation of surgical procedure according to skeletal and aesthetic objectives, and, consequently, the treatment of the malocclusion. Using a specific function of the software, the surgical splint was designed according to the pre-programmed skeletal movements, and subsequently, the physical splint was generated with a three-dimensional (3D) printing technology. Once a proper occlusal decompensation was reached, a Le Fort I osteotomy of the maxilla and a bilateral sagittal surgical osteotomy of the mandible were executed to restore proper skeletal relations. The whole treatment time was 8 months. The orthodontic/orthognathic combined treatment allowed to correct the skeletal and the dental imbalance, as well as the improvement of facial aesthetics. Accordingly, the treatment objectives planned in the virtual environment were achieved. Virtual planning offers new possibilities for visualizing the relationship between dental arches and surrounding bone and soft structures in a single virtual 3D model, allowing the specialists to simulate different surgical and orthodontic procedures to achieve the best possible result for the patient and providing an accurate and predictable outcome in the treatment of challenging malocclusions.
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Early Class III Treatment Using a Hybrid Rapid Palatal Expander and Facemask in a Patient with Partially Edentulous Maxilla Post MNTI Removal: A Case Report. Healthcare (Basel) 2022; 10:healthcare10091746. [PMID: 36141358 PMCID: PMC9498524 DOI: 10.3390/healthcare10091746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 09/08/2022] [Accepted: 09/09/2022] [Indexed: 11/16/2022] Open
Abstract
This case report describes the orthodontic treatment of a 9-year-old girl who presented with multiple agenesis, maxillary contraction, and skeletal Class III malocclusion after the surgical removal of a melanocytic neuroectodermal tumour of infancy (MNTI) or the so-called melanocytic progonoma at 40 days of age. The lack of dental anchorage in the posterior segment of the second quadrant and the search for maximum control during suture expansion to reduce dental effects led to the use of a hybrid rapid palatal expander (RPE) with dental anchorage in the first quadrant and skeletal anchorage on the two miniscrews placed in the second quadrant, to allow a more even distribution of expansion forces. The expansion procedures performed with the hybrid anchorage device and extraoral traction demonstrate the possibility of solving the contraction in the posterior segments and anterior crossbite in a few months with maximum control of the applied forces, despite the objective difficulties related to the specificity of the case.
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Gül A, Tjoa STH, de Gijt JP, van der Tas JT, Sutedja H, Wolvius EB, van der Wal KGH, Koudstaal MJ. Current Practice for Transverse Mandibular and Maxillary Discrepancies in the Netherlands: A Web-Based Survey Among Orthodontists and Oral and Maxillofacial Surgeons. Craniomaxillofac Trauma Reconstr 2022; 15:219-228. [PMID: 36081680 PMCID: PMC9446273 DOI: 10.1177/19433875211027694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/03/2023] Open
Abstract
The main objective of this study was to provide an overview of the current practice for transverse mandibular and maxillary discrepancies in the Netherlands using a web-based survey. Orthodontists (ORTHO) and Oral and Maxillofacial Surgeons (OMFS) in the Netherlands were invited to the web-based survey via their professional association. Three cases were presented which could be treated non-surgically and surgically. Participants were asked what treatment they preferred: no treatment, orthodontic treatment with optional extractions or surgically assisted orthodontic treatment. The web-based survey ended with questions on various technical aspects and any experienced complication. Invitation was sent to all 303 members of professional association for ORTHO and to all 379 members of professional association for OMFS. Overall response number was 276 (response rate of 40.5%), including 127 incomplete responses. Generally, ORTHO prefer orthodontic treatment with optional extractions and OMFS lean towards surgically assisted orthodontic treatment. Mandibular Midline Distraction appears to be less preferred, possibly due to lack of clinical experience or knowledge by both professions despite being proven clinical stable surgical technique with stable long-term outcomes. There seems to be consensus on technical aspects by both professions, however, there are various thoughts on duration of consolidation period. Complications are mostly minor and manageable.
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Affiliation(s)
- Atilla Gül
- Department of Oral and
Maxillofacial Surgery, Erasmus MC, University Medical Center
Rotterdam, the Netherlands
| | - Stephen T. H. Tjoa
- Department of Oral and
Maxillofacial Surgery, Erasmus MC, University Medical Center
Rotterdam, the Netherlands
| | - Jan P. de Gijt
- Department of Oral and
Maxillofacial Surgery, Ikazia Hospital, Rotterdam, the Netherlands
| | - Justin T. van der Tas
- Department of Oral and
Maxillofacial Surgery, Erasmus MC, University Medical Center
Rotterdam, the Netherlands
| | | | - Eppo B. Wolvius
- Department of Oral and
Maxillofacial Surgery, Erasmus MC, University Medical Center
Rotterdam, the Netherlands
| | - Karel G. H. van der Wal
- Department of Oral and
Maxillofacial Surgery, Erasmus MC, University Medical Center
Rotterdam, the Netherlands
| | - Maarten J. Koudstaal
- Department of Oral and
Maxillofacial Surgery, Erasmus MC, University Medical Center
Rotterdam, the Netherlands
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Management of Class III Malocclusion and Maxillary Transverse Deficiency with Microimplant-Assisted Rapid Palatal Expansion (MARPE): A Case Report. Medicina (B Aires) 2022; 58:medicina58081052. [PMID: 36013519 PMCID: PMC9415682 DOI: 10.3390/medicina58081052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2022] [Revised: 07/22/2022] [Accepted: 08/01/2022] [Indexed: 11/17/2022] Open
Abstract
Microimplant-assisted rapid palatal expansion (MARPE) has been demonstrated successfully in maxillary expansion in late adolescence and adulthood. The maxillary advancement accompanied by expansion is frequently anticipated, which is beneficial for the treatment of class III malocclusion. Airway volume increase can also be noted in some cases from the measurement of cone beam computerized tomography (CBCT) after expansion. The objective of this case report is to demonstrate the feasibility of applying MARPE on late adolescence patients with maxillary transverse deficiency and to present the changes in transverse and anteroposterior dimensions as well as the volume increase in velopharyngeal airway after MARPE. A 15-year-old female presented class III skeletal pattern. She had maxillary transverse deficiency with moderate crowding and posterior/anterior crossbites. Maxillary Skeletal Expander (MSE; Biomaterials Korea Inc.) type-2 was used as a MARPE device in this case. After four weeks of maxillary expansion, a significant amount of expansion was achieved and the anterior crossbite was spontaneously corrected. Fixed appliance treatment was commenced four weeks after MARPE with 0.022-slot preadjusted brackets (MBT prescription). Temporary anchorage devices (TADs) were placed over the mandibular buccal shelves for posterior teeth distalization and crowding relief. After 25 months of treatment, the facial profile was improved with maxillary advancement (SNA: 83° to 83.5°) and mandibular backward rotation (SNB: 83° to 82°; SN-MP: 34.5° to 35°). In this case, MARPE not only engenders significant transverse correction but also aids in anteroposterior change. The treatment effects of maxillary advancement and mandibular backward rotation can lead to a more esthetic profile in skeletal class III cases.
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Unusual complications at the recipient site following periodontal plastic surgery procedures: a systematic review. Clin Oral Investig 2022; 26:5595-5609. [PMID: 35809115 DOI: 10.1007/s00784-022-04596-6] [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: 01/23/2022] [Accepted: 06/20/2022] [Indexed: 11/03/2022]
Abstract
OBJECTIVE To identify and describe unusual soft tissue complications of periodontal plastic surgery procedures at the recipient site after periodontal grafts. MATERIALS AND METHODS Two independent reviewers performed a comprehensive search in MEDLINE, Cochrane, periodontics journals, reference lists, and grey literature for articles dated up to July 2021. Publications related to surgical interventions only around the teeth with an unusual complication at the recipient site were selected. No restrictions were made in the number of cases, follow-up period, or language. The Cochrane Collaboration's tool for assessing risk of bias, the Newcastle-Ottawa Scale (NOS), and two validated case report/series checklists were used to critically appraise the studies. RESULTS A total of 1434 articles were examined, of which 28 met the inclusion criteria: one RCT, two cohort studies, and twenty-five case reports/series. The periodontal plastic surgery procedures described in these articles were conducted to treat lack of attached gingiva and gingival recessions. The following unusual complications were found: bone exostosis, epithelial inclusion, root resorption, abscess, overgrowth, "liver clot" formation, and oroantral communication. CONCLUSION Bone exostosis and epithelial inclusions were the most prevalent unusual complications following treatment with subepithelial connective tissue graft, free gingival graft, and acellular dermal matrix allograft. Due to the nature of the reports, the clinical recommendations for diagnosis and treatment cannot be homogenized. Clinical studies reporting complications are required to develop management protocols (PROSPERO CRD42021230875). CLINICAL RELEVANCE Clinicians need to know the main complications that can occur in mucogingival surgeries as well as their clinical management to provide a successful and predictable treatment.
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Esen Ç, Esen A, Güler AY, Menziletoğlu D, Soğancı AE. Assessment of Alveolar Bone Loss and Buccal Bone Thickness After Surgically Assisted Rapid Maxillary Expansion. MEANDROS MEDICAL AND DENTAL JOURNAL 2022. [DOI: 10.4274/meandros.galenos.2020.97752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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21
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Siddhisaributr P, Khlongwanitchakul K, Anuwongnukroh N, Manopatanakul S, Viwattanatipa N. Effectiveness of miniscrew assisted rapid palatal expansion using cone beam computed tomography: A systematic review and meta-analysis. Korean J Orthod 2022; 52:182-200. [PMID: 35418520 PMCID: PMC9117794 DOI: 10.4041/kjod21.256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Accepted: 12/18/2021] [Indexed: 11/26/2022] Open
Abstract
Objective This study aims to examine the effectiveness of miniscrew assisted rapid palatal expansion (MARPE) treatment in late adolescents and adult patients using cone-beam computed tomography (CBCT). Methods Literature search was conducted in five electronic databases (PubMed, Embase, Scopus, Web of Science, and Cochrane Library) based on the PICOS keyword design focusing on MARPE. Out of the 18 CBCT screened outcomes, only nine parameters were sufficient for the quantitative meta-analysis. The parameters were classified into three main groups 1) skeletal changes, 2) alveolar change, and 3) dental changes. Heterogeneity test, estimation of pooled means, publication bias, sensitivity analysis and risk of bias assessment were also performed. Results Upon database searching, only 14 full-text articles were qualified from the 364 obtained results. Heterogeneity test indicated the use of the random-effects model. The pooled mean estimate were as follows 1) Skeletal expansion zygomatic width, 2.39 mm; nasal width, 2.68 mm; jugular width, 3.12 mm; and midpalatal suture at the posterior nasal spine and anterior nasal spine, 3.34 mm and 4.56 mm, respectively; 2) Alveolar molar width expansion, 4.80 mm; and 3) Dental expansion inter-canine width, 3.96 mm; inter-premolar width, 4.99 mm and inter-molar width, 5.99 mm. The percentage of expansion demonstrated a skeletal expansion (PNS) of 55.76%, alveolar molar width expansion of 24.37% and dental expansion of 19.87%. Conclusions In the coronal view, the skeletal and dental expansion created by MARPE was of the pyramidal pattern. MARPE could successfully expand the constricted maxilla in late adolescents and adult patients.
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Affiliation(s)
| | | | - Niwat Anuwongnukroh
- Department of Orthodontics, Faculty of Dentistry, Mahidol University, Bangkok, Thailand
| | - Somchai Manopatanakul
- Department of Advanced General Dentistry, Faculty of Dentistry, Mahidol University, Bangkok, Thailand
| | - Nita Viwattanatipa
- Department of Orthodontics, Faculty of Dentistry, Mahidol University, Bangkok, Thailand
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Ventura V, Botelho J, Machado V, Mascarenhas P, Pereira FD, Mendes JJ, Delgado AS, Pereira PM. Miniscrew-Assisted Rapid Palatal Expansion (MARPE): An Umbrella Review. J Clin Med 2022; 11:jcm11051287. [PMID: 35268377 PMCID: PMC8911209 DOI: 10.3390/jcm11051287] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 02/09/2022] [Accepted: 02/24/2022] [Indexed: 02/01/2023] Open
Abstract
In postpubertal patients, maxillary transverse discrepancy is a common condition often requiring surgical approaches. To overcome the excess morbidity and discomfort, maxillary expansion through miniscrew-assisted rapid palatal expansion (MARPE) was proposed and studied in the last few years. This umbrella review aims to critically appraise the quality of evidence and the main clinical outcomes of available systematic reviews (SRs) on MARPE. An extensive search was carried out in five electronic databases (PubMed-Medline, Cochrane Database of SRs, Scielo, Web of Science, and LILACS) until December 2021. The methodological quality was appraised using the A Measurement Tool to Assess SRs criteria 2 (AMSTAR2). The primary outcome was the methodological quality of SRs. Overall, four SRs were included and analyzed, one of high methodological quality, one of low and two of critically low. Despite the verified methodological constraints, MARPE seems to present significant clinical changes when compared to conventional RPE, SARPE or controls and less adverse clinical outcomes. The quality of evidence produced by the available SRs was not favorable. Future high standard SRs and well-designed clinical trials are warranted to better clarify the clinical protocols and outcomes success of MARPE.
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Affiliation(s)
- Vanda Ventura
- Orthodontic Department, Instituto Universitário Egas Moniz, 2829-511 Almada, Portugal; (F.D.P.); (A.S.D.); (P.M.P.)
- Clinical Research Unit (CRU), Centro de Investigação Interdisciplinar Egas Moniz (CiiEM), Egas Moniz–Cooperativa de Ensino Superior CRL, 2829-511 Almada, Portugal; (J.B.); (V.M.); (P.M.); (J.J.M.)
- Correspondence:
| | - João Botelho
- Clinical Research Unit (CRU), Centro de Investigação Interdisciplinar Egas Moniz (CiiEM), Egas Moniz–Cooperativa de Ensino Superior CRL, 2829-511 Almada, Portugal; (J.B.); (V.M.); (P.M.); (J.J.M.)
- Evidence-Based Hub, Clinical Research Unit, Centro de Investigação Interdisciplinar Egas Moniz, 2829-511 Almada, Portugal
| | - Vanessa Machado
- Clinical Research Unit (CRU), Centro de Investigação Interdisciplinar Egas Moniz (CiiEM), Egas Moniz–Cooperativa de Ensino Superior CRL, 2829-511 Almada, Portugal; (J.B.); (V.M.); (P.M.); (J.J.M.)
- Evidence-Based Hub, Clinical Research Unit, Centro de Investigação Interdisciplinar Egas Moniz, 2829-511 Almada, Portugal
| | - Paulo Mascarenhas
- Clinical Research Unit (CRU), Centro de Investigação Interdisciplinar Egas Moniz (CiiEM), Egas Moniz–Cooperativa de Ensino Superior CRL, 2829-511 Almada, Portugal; (J.B.); (V.M.); (P.M.); (J.J.M.)
- Evidence-Based Hub, Clinical Research Unit, Centro de Investigação Interdisciplinar Egas Moniz, 2829-511 Almada, Portugal
| | - François Durand Pereira
- Orthodontic Department, Instituto Universitário Egas Moniz, 2829-511 Almada, Portugal; (F.D.P.); (A.S.D.); (P.M.P.)
- Clinical Research Unit (CRU), Centro de Investigação Interdisciplinar Egas Moniz (CiiEM), Egas Moniz–Cooperativa de Ensino Superior CRL, 2829-511 Almada, Portugal; (J.B.); (V.M.); (P.M.); (J.J.M.)
| | - José João Mendes
- Clinical Research Unit (CRU), Centro de Investigação Interdisciplinar Egas Moniz (CiiEM), Egas Moniz–Cooperativa de Ensino Superior CRL, 2829-511 Almada, Portugal; (J.B.); (V.M.); (P.M.); (J.J.M.)
- Evidence-Based Hub, Clinical Research Unit, Centro de Investigação Interdisciplinar Egas Moniz, 2829-511 Almada, Portugal
| | - Ana Sintra Delgado
- Orthodontic Department, Instituto Universitário Egas Moniz, 2829-511 Almada, Portugal; (F.D.P.); (A.S.D.); (P.M.P.)
- Clinical Research Unit (CRU), Centro de Investigação Interdisciplinar Egas Moniz (CiiEM), Egas Moniz–Cooperativa de Ensino Superior CRL, 2829-511 Almada, Portugal; (J.B.); (V.M.); (P.M.); (J.J.M.)
| | - Pedro Mariano Pereira
- Orthodontic Department, Instituto Universitário Egas Moniz, 2829-511 Almada, Portugal; (F.D.P.); (A.S.D.); (P.M.P.)
- Clinical Research Unit (CRU), Centro de Investigação Interdisciplinar Egas Moniz (CiiEM), Egas Moniz–Cooperativa de Ensino Superior CRL, 2829-511 Almada, Portugal; (J.B.); (V.M.); (P.M.); (J.J.M.)
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Effectiveness of miniscrew-assisted rapid maxillary expansion: a systematic review and meta-analysis. Clin Oral Investig 2022; 26:4509-4523. [PMID: 35211817 DOI: 10.1007/s00784-022-04415-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 02/15/2022] [Indexed: 11/03/2022]
Abstract
OBJECTIVES To compare the effectiveness and side effects of miniscrew-assisted rapid maxillary expansion (MARME) with conventional rapid maxillary expansion (RME) in the treatment of transverse maxillary deficiency. MATERIALS AND METHODS We conducted a systematic review and meta-analysis of randomized controlled trials (RCTs). We searched in the MEDLINE, Embase, and Cochrane Central databases. The quality of included RCTs was evaluated using the Cochrane risk-of-bias tool. The primary outcome was the extent of dentoskeletal expansion achieved. Secondary outcomes were the dental and periodontal side effects. We calculated summary weighted mean differences (MD) with 95% confidence intervals (CI) using random-effects meta-analysis. RESULTS Six RCTs involving 287 participants met the inclusion criteria. Compared to conventional RME, MARME was associated with a greater palatal suture opening (mm) measured at the anterior nasal spine (MD = 1.21, 95% CI 0.75 to 1.66), first premolars (MD = 1.13, 95% CI 0.72 to 1.55), first molars (MD = 1.18, 95% CI 0.28 to 2.09), and posterior nasal spine (MD = 1.14, 95% CI 0.30 to 1.98), increased palatal width (mm) at the first molars (MD = 0.75, 95% CI 0.30 to 1.20), and reduced buccal inclination (degrees) of the first premolars (MD = - 6.06, 95% CI - 10.36 to - 1.76) and first molars (MD = - 3.17, 95% CI - 5.35 to - 0.99). CONCLUSIONS MARME is associated with the following advantages over traditional tooth-borne RME: increased palatal suture opening, increased palatal width, and reduced buccal tooth inclination. REGISTRATION This study is registered with PROSPERO, CRD42021256750. CLINICAL RELEVANCE MARME may be preferred over conventional RME in cases with fused mid-palatal sutures or where further buccal tooth inclination is undesirable.
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Romano F, Sverzut CE, Trivellato AE, Saraiva MCP, Nguyen TT. Surgically assisted rapid palatal expansion (SARPE): three-dimensional superimposition on cranial base. Clin Oral Investig 2022; 26:3885-3897. [PMID: 35013784 DOI: 10.1007/s00784-021-04355-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Accepted: 12/29/2021] [Indexed: 11/03/2022]
Abstract
OBJECTIVES To evaluate dental and skeletal changes caused by surgically assisted rapid palatal expansion (SARPE) using the superimposition of three-dimensional cone-beam computed tomography (CBCT) images on the cranial base. MATERIAL AND METHODS This is a retrospective quasi-experiment before-and-after study using a convenience sample. Twenty-four adult patients (13 male and 11 female) were evaluated before SARPE (T0), immediately after expansion (T1), and after 6 months of retention (T2). CBCT scans were superimposed on the anterior cranial base using voxel-based registration. Measurements from different reference points were used for comparisons between times. RESULTS At T1, all teeth had significant buccal tipping. At T2, most teeth remained in the same position as at T1, except the first premolar and the first molar, whose buccal roots moved slightly. The amount of bony expansion was 65 to 70% of the amount of tooth movement. The A point and maxillary incisors moved anteriorly from T0 to T1 and T2 (p < 0.0001). Inter-nasal distance had increased significantly at T1 (p < 0.0001) and remained stable at T2 (p = 0.478). No expansion was achieved at the zygomatic arch (p = 0.114). CONCLUSION SARPE promoted substantial buccal tipping of posterior teeth and some bone displacement; it also moved the maxilla and teeth forward and increased nasal width. CLINICAL RELEVANCE No other clinical studies have evaluated dental and skeletal changes caused by SARPE using superimposition of 3D CBCT images on the cranial base. This study findings may help clinical dentists plan treatments using safe and reliable information.
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Affiliation(s)
- Fábio Romano
- Department of Pediatric Dentistry, Orthodontics, School of Dentistry of Ribeirão Preto, University of São Paulo, São Paulo, Brazil. .,Department of Orthodontics, School of Dentistry, University of North Carolina, Chapel Hill, NC, USA.
| | - Cássio Edvard Sverzut
- Department of Oral & Maxillofacial Surgery and Periodontology, School of Dentistry of Ribeirão Preto, University of São Paulo, São Paulo, Brazil
| | - Alexandre Elias Trivellato
- Department of Oral & Maxillofacial Surgery and Periodontology, School of Dentistry of Ribeirão Preto, University of São Paulo, São Paulo, Brazil
| | - Maria Conceição Pereira Saraiva
- Department of Pediatric Dentistry, Epidemiology, School of Dentistry of Ribeirão Preto, University of São Paulo, São Paulo, Brazil
| | - Tung T Nguyen
- Department of Orthodontics, School of Dentistry, University of North Carolina, Chapel Hill, NC, USA
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de Andrade Vieira W, Oliveira MB, Machado LDS, Cericato GO, Lima IFP, Paranhos LR. Pulp changes from rapid maxillary expansion: A systematic review. Orthod Craniofac Res 2021; 25:320-335. [PMID: 34874608 DOI: 10.1111/ocr.12556] [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: 09/18/2021] [Revised: 11/06/2021] [Accepted: 12/02/2021] [Indexed: 12/01/2022]
Abstract
INTRODUCTION This study aimed to systematically review the current evidence on the occurrence of pulp changes as side effects from orthopaedic rapid maxillary expansion (ORME) or surgically assisted rapid maxillary expansion (SARME). METHODS An electronic search was performed in eleven databases. The eligibility criteria included clinical studies assessing vitality, sensibility or dimensions of the pulp chamber of permanent teeth before and after ORME or SARME, without restrictions on publication year or language. The risk of bias was analysed with the NIH 'Quality Assessment Tool for Before-After (Pre-Post) Studies with No Control Group' and the 'JBI for quasi-experimental studies' tool. The GRADE tool was used to assess the certainty of evidence. RESULTS The initial search resulted in 1,197 records, from which only seven before-after studies were included. There was a change in the pulpal blood flow (PBF) of maxillary incisors and canines up to 5 days after SARME, which gradually returned after 7 days to 3 months. After ORME, one study observed an increased PBF and one study observed a reduced PBF, which gradually returned after the end of expansion. Two studies observed that both ORME and SARME caused temporary changes in pulp sensibility. Three studies observed a significant reduction in the pulp chamber after ORME or SARME. The outcomes presented a very low certainty of evidence. CONCLUSIONS Although limited, the evidence shows that ORME and SARME caused temporary changes in pulp vitality and sensibility, with the possibility of inducing a reduction in pulp chamber dimensions.
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Affiliation(s)
- Walbert de Andrade Vieira
- Department of Restorative Dentistry, Endodontics Division, State University of Campinas - Unicamp, School of Dentistry of Piracicaba, Piracicaba, SP, Brazil
| | - Millena Barroso Oliveira
- Post-Graduation Program in Dentistry, Federal University of Uberlândia (UFU), Uberlândia, MG, Brazil
| | | | - Graziela Oro Cericato
- Post-Graduation Program in Dentistry, Faculdade Meridional- IMED, Passo Fundo, RS, Brazil
| | - Igor Felipe Pereira Lima
- Post-Graduation Program in Dentistry, Department of Oral Pathology, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Luiz Renato Paranhos
- Department of Community and Preventive Dentistry, Federal University of Uberlândia (UFU), Uberlândia, MG, Brazil
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Salmoria I, de Souza EC, Furtado A, Franzini CM, Custodio W. Dentoskeletal changes and their correlations after micro-implant-assisted palatal expansion (MARPE) in adults with advanced midpalatal suture ossification. Clin Oral Investig 2021; 26:3021-3031. [PMID: 34773143 DOI: 10.1007/s00784-021-04284-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Accepted: 11/07/2021] [Indexed: 11/30/2022]
Abstract
OBJECTIVES To evaluate and correlate the dentoskeletal changes of adult patients after miniscrew-assisted rapid palatal expander (MARPE) in the two final stages of midpalatal suture ossification. MATERIALS AND METHODS This interventional pre-post clinical study consisted of 20 adults (24.9±1.8 years), with transverse maxillary atresia, divided into two subgroups (n=10) based on the ossification degree of the midpalatal suture: stage D, fusion completed in the palatine bone; and stage E, fusion anteriorly in the maxilla. Cone beam computed tomography (CBCT) in the pre- (T0) and post-treatment (T1) time intervals were used to evaluate the anterior and posterior sutural opening, activation of the expander screw, vestibular-lingual inclinations, and widths of first premolars and first molars. Maxillary interincisor diastema was measured on patients' plaster models in the same timepoints. The Wilcoxon-Mann-Whitney test, generalized linear models (GLM), and chi-square (χ2) test were employed. RESULTS All variables significantly increased after MARPE therapy regardless of the ossification degree (P<0.05). Patients with stage D suture presented wider interincisal diastema and maxillary suture opening (on both regions, anterior and posterior) when compared with patients with stage E (P<0.05). Maxillary interincisor diastema was positively associated with anterior and posterior suture opening for all subjects (P<0.05). MARPE therapy was unsuccessful in six patients, mostly presented by individuals with E maturation stage of the midpalatal suture. CONCLUSIONS After MARPE, a significant correction in the transverse defect of the maxillary basal bone was achieved for adults in the last two midpalatal suture maturation stages. CLINICAL RELEVANCE Adult patients in stage D of maxillary suture ossification are more susceptible to dentoskeletal changes following MARPE therapy as compared to patients with stage E.
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Affiliation(s)
- Igor Salmoria
- Department of Orthodontics, University Center of the Hermínio Ometto Foundation-FHO, Avenida Dr Maximiliano Baruto, 500, Araras, SP, Zip Code 13607-339, Brazil
| | - Evaldo Chaves de Souza
- Department of Orthodontics, University Center of the Hermínio Ometto Foundation-FHO, Avenida Dr Maximiliano Baruto, 500, Araras, SP, Zip Code 13607-339, Brazil
| | - Alvaro Furtado
- Department of Orthodontics, Centro Universitário Unifacvest: Centro Universitario Unifacvest, Florianópolis, SC, Brazil
| | - Cristina Maria Franzini
- Department of Orthodontics, University Center of the Hermínio Ometto Foundation-FHO, Avenida Dr Maximiliano Baruto, 500, Araras, SP, Zip Code 13607-339, Brazil
| | - William Custodio
- Department of Orthodontics, University Center of the Hermínio Ometto Foundation-FHO, Avenida Dr Maximiliano Baruto, 500, Araras, SP, Zip Code 13607-339, Brazil.
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Aiello D, Nucera R, Costa S, Figliuzzi MM, Paduano S. A Simplified Digital Approach to the Treatment of a Postpuberty Patient with a Class III Malocclusion and Bilateral Crossbite. Case Rep Dent 2021; 2021:3883187. [PMID: 34631175 PMCID: PMC8497132 DOI: 10.1155/2021/3883187] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2021] [Accepted: 08/25/2021] [Indexed: 11/17/2022] Open
Abstract
Monolateral and bilateral crossbites are amongst the most frequent forms of malocclusion in the world population. The lack of early correction of this type of malocclusion leads to the partial or total ossification of the sutures which then require surgical treatment in adult patients. In recent years, devices on minipalatal screws have noticeably increased the time window in which it is possible to correct these types of alterations. In this case report, we show how it is possible to correct a third-class skeletal malocclusion associated with a posterior bilateral crossbite in a young woman using a rapid expander on miniscrews and fixed orthodontic device to finalise the process. The procedure for the insertion of the palatal screws was aided by the use of a digitally printed surgical guide, and the appliance was applied in the same sitting thanks to the use of a digital flow software and a systematic easy driver. The CBCT scans show how the orthopaedic expansion of the upper maxilla was obtained without any important alterations that damaged the permanent teeth. This case report wishes to demonstrate how easy and predictable it can be to resolve cases of this type with optimal aesthetic and functional results even when body growth has ended.
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Affiliation(s)
- Domenico Aiello
- Department of Health, University Magna Graecia of Catanzaro, Viale Europa, Loc Germaneto, 88100 Catanzaro, Italy
| | - Riccardo Nucera
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, Section of Orthodontics, University of Messina, Italy
| | - Stefania Costa
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, Section of Orthodontics, University of Messina, Italy
| | - Michele Mario Figliuzzi
- Department of Health, University Magna Graecia of Catanzaro, Viale Europa, Loc Germaneto, 88100 Catanzaro, Italy
| | - Sergio Paduano
- Department of Health, University Magna Graecia of Catanzaro, Viale Europa, Loc Germaneto, 88100 Catanzaro, Italy
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Mehta S, Chen PJ, Upadhyay M, Yadav S. Intermaxillary elastics on skeletal anchorage and MARPE to treat a class III maxillary retrognathic open bite adolescent: A case report. Int Orthod 2021; 19:707-715. [PMID: 34452857 DOI: 10.1016/j.ortho.2021.08.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 07/31/2021] [Accepted: 08/04/2021] [Indexed: 11/29/2022]
Abstract
Class III malocclusion when accompanied with transverse and vertical maxillomandibular discrepancies such as posterior crossbite and vertical open bite leads to complicated orthodontic treatment. Proper diagnosis and treatment planning are important in such patients for a successful orthodontic outcome. A common treatment approach for patients with class III malocclusion is to wait for the completion of growth and plan orthognathic surgery in conjunction with orthodontic treatment. However, performing no treatment and waiting for growth to be completed during teen years could lead to negative effects on the patient's self-esteem. In such cases, a non-surgical option with skeletal anchorage could be used to correct the malocclusion without surgical intervention. This case report shows that in patients with severe class III malocclusion, skeletal anchorage can be used for the correction of anterior crossbite with intermaxillary elastics.
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Affiliation(s)
- Shivam Mehta
- Division of Orthodontics, University of Connecticut Health, Farmington, CT, USA.
| | - Po-Jung Chen
- Division of Orthodontics, University of Connecticut Health, Farmington, CT, USA
| | - Madhur Upadhyay
- Division of Orthodontics, University of Connecticut Health, Farmington, CT, USA
| | - Sumit Yadav
- Division of Orthodontics, University of Connecticut Health, Farmington, CT, USA
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Oliveira RDS, de Oliveira CJM, Panzarella FK, Cintra Junqueira JL. Maturation stages of the sutures in the median palatine evaluated with cone-beam computed tomography. Am J Orthod Dentofacial Orthop 2021; 160:567-572. [PMID: 34274199 DOI: 10.1016/j.ajodo.2020.05.026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2019] [Revised: 04/01/2020] [Accepted: 05/01/2020] [Indexed: 11/24/2022]
Abstract
INTRODUCTION This study aimed to evaluate the influence of age, sex, and facial growth patterns on the maturation stage of midpalatal sutures. METHODS We selected 90 total skull cone-beam computed tomography scans and divided them into the following 3 groups: brachyfacial (n = 30), mesofacial (n = 30), and dolichofacial (n = 30). These groups were determined using Ricketts VERT 3-dimensional cephalometric analysis. All patients were aged ≥18 years and were divided into those aged ≥30 years and >30 years. The maturational stage of the median palatine sutures was determined by evaluating the central transverse axial dimension in the maxillary-mandibular palate. Maturational stages were classified as A, B, C, D, and E. RESULTS Of the 90 images reviewed, 55 (61.1%) were female patients, and 35 were male patients (38.9%). The age of patients ranged from 18 to 59 years, with 55 patients aged <30 years (61.1%) and 35 aged ≥30 years (38.9%). Regarding the maturational stages, 3.3% of brachyfacial, 6.7% of mesiofacial, and 16.7% of dolichofacial subjects (P = 0.032) were classified as stages B and C. CONCLUSIONS The patients' facial patterns were found to be a significant signal for the maturation stage of midpalatal sutures. Adult dolichofacial patients are the most likely to have stage B and C.
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Affiliation(s)
- Rudyard Dos Santos Oliveira
- Department of Dentistry, Postgraduate Program in Orthodontics, São Leopoldo Mandic Institute and Research Center, Campinas, São Paulo, Brazil.
| | | | - Francine Kühl Panzarella
- Department of Dentistry, Postgraduate Program in Imaging and Oral Radiology, São Leopoldo Mandic College, Campinas, São Paulo, Brazil
| | - José Luiz Cintra Junqueira
- Department of Dentistry, Postgraduate Program in Imaging and Oral Radiology, São Leopoldo Mandic College, Campinas, São Paulo, Brazil
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Bone formation after surgically assisted rapid maxillary expansion: comparison of 2 distraction osteogenesis protocols. Oral Surg Oral Med Oral Pathol Oral Radiol 2021; 133:271-276. [PMID: 34493473 DOI: 10.1016/j.oooo.2021.06.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2020] [Revised: 06/11/2021] [Accepted: 06/16/2021] [Indexed: 11/20/2022]
Abstract
OBJECTIVE The aim of this study was to compare bone formation between 2 distraction osteogenesis protocols by analyzing cone beam computed tomography (CBCT) scan data. STUDY DESIGN In this retrospective study, the efficacy of 2 different surgically assisted rapid maxillary expansion protocols (group 1 [G1], 3 × 0.25 mm/d; group 2 [G2], 1 mm start followed by 2 × 0.25 mm/d) was analyzed using CBCT scans obtained at 3 time points: preoperatively (T0), immediately after surgery (T1), and 6 months after surgery (T2). Bone formation at T0, T1, and T2 was analyzed using the Dolphin Imaging 11 program. RESULTS At T1, both groups had significantly higher bone volume than at T0 (G1, 135.6 vs 124.65 mm3, respectively; G2, 153.49 vs 118.9 mm3, respectively), with no significant difference between groups (P = .6). Moreover, bone density measured in the region of interest was similar between groups at all 3 time points; however, in both groups, bone density was significantly lower at T1 and T2 than at T0 (P < .01), with no difference between T1 and T2. CONCLUSIONS Bone density between the incisors decreased with progressive distraction (i.e., increasing volume), regardless of the distraction protocol used; thus, both protocols can be used safely in clinical practice. Nevertheless, our results indicate that stress should not be applied to the incisors within 6 months of surgery, regardless of the protocol used. Surgeons and orthodontists should therefore consider immature bone formation and avoid using excessive force to close a diastema.
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Kapetanović A, Theodorou CI, Bergé SJ, Schols JGJH, Xi T. Efficacy of Miniscrew-Assisted Rapid Palatal Expansion (MARPE) in late adolescents and adults: a systematic review and meta-analysis. Eur J Orthod 2021; 43:313-323. [PMID: 33882127 PMCID: PMC8186837 DOI: 10.1093/ejo/cjab005] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Background Miniscrew-Assisted Rapid Palatal Expansion (MARPE) is a non-surgical treatment for transverse maxillary deficiency. However, there is limited evidence concerning its efficacy. Objectives This systematic review aims to evaluate the efficacy of MARPE in late adolescents and adults by assessing success rate and skeletal and dental transverse maxillary expansion, as well as treatment duration, dental and periodontal side effects and soft tissue effects. Search methods Seven electronic databases were searched (MEDLINE, Embase, Cochrane Library, Web of Science, Scopus, ProQuest and ClinicalTrials.gov) without limitations in November 2020. Selection criteria Randomized and non-randomized clinical trials and observational studies on patients from the age of 16 onwards with transverse maxillary deficiency who were treated with MARPE and which included any of the predefined outcomes. Data collection and analysis Inclusion eligibility screening, data extraction and risk of bias assessment were performed independently in duplicate. When possible, exploratory meta-analyses of mean differences (MDs) with their 95% confidence intervals (CIs) were conducted, followed by the Grading of Recommendations, Assessment, Development and Evaluation (GRADE) analysis of the evidence quality. Results Eight articles were included: two prospective and six retrospective observational studies. One study had a moderate risk of bias, whereas seven studies had a serious risk of bias. GRADE quality of evidence was very low. MARPE showed a high success rate (mean: 92.5%; 95%CI: 88.7%–96.3%), resulting in a significant skeletal width increase (MD: 2.33 mm; 95%CI: 1.63 mm–3.03 mm) and dental intermolar width increase (MD: 6.55 mm; 95%CI: 5.50 mm–7.59 mm). A significant increase in dental tipping, a decrease in mean buccal bone thickness and buccal alveolar height, as well as nasal soft tissue change was present (P < 0.05). The mean duration of expansion ranged from 20 to 126 days. Limitations One of the main drawbacks was the lack of high-quality prospective studies in the literature. Conclusions and implications MARPE is a treatment modality that is associated with a high success rate in skeletal and dental maxillary expansion. MARPE can induce dental and periodontal side effects and affect peri-oral soft tissues. Given the serious risk of bias of the included studies, careful data interpretation is necessary and future research of higher quality is strongly recommended. Registration PROSPERO (CRD42020176618). Funding No grants or any other support funding were received.
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Affiliation(s)
- Aldin Kapetanović
- Radboud University Medical Center, Radboud Institute for Health Sciences, Department of Dentistry - Orthodontics and Craniofacial Biology, Nijmegen, The Netherlands
| | | | - Stefaan J Bergé
- Radboud University Medical Center, Radboud Institute for Health Sciences, Department of Oral and Maxillofacial Surgery, Nijmegen, The Netherlands
| | - Jan G J H Schols
- Radboud University Medical Center, Radboud Institute for Health Sciences, Department of Dentistry - Orthodontics and Craniofacial Biology, Nijmegen, The Netherlands
| | - Tong Xi
- Radboud University Medical Center, Radboud Institute for Health Sciences, Department of Oral and Maxillofacial Surgery, Nijmegen, The Netherlands
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Effect of vomer position following surgically assisted rapid palatal expansion. Oral Maxillofac Surg 2021; 26:113-121. [PMID: 33987751 DOI: 10.1007/s10006-021-00968-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Accepted: 05/05/2021] [Indexed: 10/21/2022]
Abstract
PURPOSE To evaluate the effect of vomer position and prevalence of periodontal dehiscence in patients who underwent surgically assisted rapid palatal expansion (SARPE). The null hypotheses were the following: (1) vomer position in the coronal plane does not influence the degree of skeletal and dental expansion; and (2) there is no association between expansion, periodontal dehiscence and vomer position. METHODS Twenty-one patients were evaluated before treatment (T0) and immediately after SARPE expansion (T1). After SARPE, the vomer was in the right side in 11 patients and in the left in 10 patients. Skeletal and dental effects were evaluated using CBCT, landmarks and measurements. RESULTS The maxilla and the nasal cavity expanded asymmetrically. The side containing the vomer had less skeletal expansion but more dental tipping. Dehiscence increased significantly from T0 to T1 and was associated with the amount of skeletal displacement, especially when greater than 3.20 mm. In the first premolars region, there was more than 2 mm of asymmetric expansion observed in 38.5% of the patients. CONCLUSION The null hypotheses were rejected. The side containing the vomer had less skeletal expansion of the maxilla and nasal cavity but more dental tipping. Dehiscence increased after expansion, but there were no differences between sides.
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Kotaniemi KVM, Suojanen J, Palotie T. Peri- and postoperative complications in Le Fort I osteotomies. J Craniomaxillofac Surg 2021; 49:789-798. [PMID: 33994290 DOI: 10.1016/j.jcms.2021.04.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 04/07/2021] [Accepted: 04/20/2021] [Indexed: 11/16/2022] Open
Abstract
This retrospective study was performed to report the peri- and postoperative complications encountered by patients who underwent Le Fort I osteotomy, as well as predictor variables affecting the risk of complications. Patients who underwent only Le Fort I osteotomy were included in the study. Information on peri- and postoperative complications were collected from the patient data records. The effects of certain predictor variables on complication rates were also studied. Twenty-four per cent of the patients suffered from complications, six (6.1%) of whom were reoperated. Most of the complications were minor and transient. Compared with one-piece osteotomy, segmental osteotomy was a significant risk factor predisposing patients to postoperative complications (p = 0.04619). Additionally, the use of patient-specific implants seemed to increase the risk of both perioperative and postoperative complications (p = 0.0248). Currently, the conventional plate fixation method is the primary method in Le Fort I osteotomies. Careful patient selection, surgical planning, and selection of surgical technique seem to be the most important factors in reducing the complication risk. Special attention should be paid with segmental osteotomy surgery.
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Affiliation(s)
- Karoliina V M Kotaniemi
- Department of Oral and Maxillofacial Diseases, Head and Neck Center, Helsinki University Hospital, Finland; Orthodontics, Department of Oral and Maxillofacial Diseases, Clinicum, Faculty of Medicine, University of Helsinki, Finland.
| | - Juho Suojanen
- Cleft Palate and Craniofacial Center, Department of Plastic Surgery, Helsinki University Hospital, Finland; Päijät-Häme Joint Authority for Health and Wellbeing, Department of Oral and Maxillo-Facial Surgery, Lahti, Finland
| | - Tuula Palotie
- Department of Oral and Maxillofacial Diseases, Head and Neck Center, Helsinki University Hospital, Finland; Orthodontics, Department of Oral and Maxillofacial Diseases, Clinicum, Faculty of Medicine, University of Helsinki, Finland
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Palatal bone thickness at the implantation area of maxillary skeletal expander in adult patients with skeletal Class III malocclusion: a cone-beam computed tomography study. BMC Oral Health 2021; 21:144. [PMID: 33752663 PMCID: PMC7986252 DOI: 10.1186/s12903-021-01489-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Accepted: 03/05/2021] [Indexed: 11/10/2022] Open
Abstract
Background Maxillary skeletal expanders (MSE) is effective for the treatment of maxillary transverse deformity. The purpose of the study was to analyse the palatal bone thickness in the of MSE implantation in patients with skeletal class III malocclusion.
Methods A total of 80 adult patients (40 males, 40 females) with an average angle before treatment were divided into two groups, the skeletal class III malocclusion group and the skeletal I malocclusion group, based on sagittal facial type. Each group consisted of 40 patients, with a male to female ratio of 1:1. A cone-beam computed tomography scanner was employed to obtain DICOM data for all patients. The palatal bone thickness was measured at 45 sites with MIMICS 21.0 software, and SPSS 22.0 software was employed for statistical analysis. The bone thickness at different regions of the palate in the same group was analysed with one-way repeated measures ANOVA. Fisher’s least significant difference-t method was used for the comparison of pairs, and independent sample t test was employed to determine the significance of differences in the bone thickness at the same sites between the two groups. Results Palatal bone thickness was greater in the middle region of the midline area (P < 0.01), while the thickness in the middle and lateral areas in both groups was generally lower (P < 0.001). The bone in the anterior, middle, and posterior regions of the two groups became increasingly thin from the middle area toward the parapalatine region. The palatal bone was significantly thinner in the area 9.0 mm before the transverse palatine suture in the midline area, 9.0 mm before and after the transverse palatine suture in the middle area, and 9.0 mm after the transverse palatine suture in the lateral area. Conclusion The palatal bone was thinner in patients with class III malocclusion than in patients with class I malocclusion, with significant differences in some areas. The differences in bone thickness should be considered when MSE miniscrews are implanted. The anterior and middle palatal areas are safer for the implantation of miniscrews, while the thinness of the posterior palatal bone increases the risk of the miniscrews falling off and perforating.
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da Costa Senior O, Smeets M, Willaert R, Shaheen E, Jacobs R, Politis C. Complications Following One-Stage Versus Two-Stage Surgical Treatment of Transverse Maxillary Hypoplasia. J Oral Maxillofac Surg 2021; 79:1531-1539. [PMID: 33757746 DOI: 10.1016/j.joms.2021.02.025] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 02/18/2021] [Accepted: 02/18/2021] [Indexed: 01/11/2023]
Abstract
PURPOSE Contemporary literature suggests a similar transverse stability of a surgical-assisted rapid palatal expansion and a segmented Le Fort I osteotomy. The aim of this study was to compare postoperative complications of 1-stage (segmental maxillary osteotomy) and 2-stage (surgical-assisted rapid palatal expansion followed by Le Fort I osteotomy) treated patients to determine the preferred treatment strategy. MATERIALS AND METHODS This retrospective study included 74 consecutive patients (age range: 14 - 57 years; 36 males, 38 females) with a moderate transverse maxillary hypoplasia: 32 patients were treated in a 1-stage protocol and 42 in a 2-stage protocol with a postoperative follow-up of at least 1 year. Dental complications such as loss of teeth, gingival dehiscence, periodontal bone loss, apical root resorption, and surgical complications such as pain, hemorrhage, altered neurosensitivity, wound infection, aseptic necrosis were analyzed. Univariate analysis consisted of a generalized linear model with logit link or Fisher exact test. RESULTS No significant difference was found for group characteristics except for longer orthodontic treatment time in the 2-stage group. Incidence and severity of complications were comparable for the 1-stage and 2-stage patients. Only overall pain was significantly greater in the 2-stage patient group (P = .038). CONCLUSIONS Considering a similar complication rate and transversal stability, the choice between 1-stage and 2-stage approach for patients with a moderate transverse maxillary hypoplasia should be patient specific.
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Affiliation(s)
- Oliver da Costa Senior
- Junior Resident, University Hospitals Leuven, Campus Sint-Rafaël, Department of Oral and Maxillofacial Surgery, Leuven, Belgium; and OMFS-IMPATH Research Group, Department of Imaging and Pathology, Faculty of Medicine, Catholic University of Leuven, Leuven, Belgium.
| | - Maximiliaan Smeets
- Junior Resident, University Hospitals Leuven, Campus Sint-Rafaël, Department of Oral and Maxillofacial Surgery, Leuven, Belgium; and OMFS-IMPATH Research Group, Department of Imaging and Pathology, Faculty of Medicine, Catholic University of Leuven, Leuven, Belgium
| | - Robin Willaert
- OMFS-IMPATH Research Group, Department of Imaging and Pathology, Faculty of Medicine, Catholic University of Leuven, Leuven, Belgium; and Member of Staff, University Hospitals Leuven, Campus Sint-Rafaël, Department of Oral and Maxillofacial Surgery, Leuven, Belgium
| | - Eman Shaheen
- Engineer, OMFS-IMPATH Research Group, Department of Imaging and Pathology, Faculty of Medicine, Catholic University of Leuven, Leuven, Belgium
| | - Reinhilde Jacobs
- OMFS-IMPATH Research Group, Department of Imaging and Pathology, Faculty of Medicine, Catholic University of Leuven, Leuven, Belgium; and Department Dental Medicine, Karolinska Institutet, Huddinge, Sweden
| | - Constantinus Politis
- OMFS-IMPATH Research Group, Department of Imaging and Pathology, Faculty of Medicine, Catholic University of Leuven, Leuven, Belgium; and Head of Department, Professor, University Hospitals Leuven, Campus Sint-Rafaël, Department of Oral and Maxillofacial Surgery, Leuven, Belgium
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Patient experience and satisfaction of surgically assisted rapid maxillary expansion and mandibular midline distraction. J Craniomaxillofac Surg 2021; 49:649-654. [PMID: 33757689 DOI: 10.1016/j.jcms.2021.01.033] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 11/14/2020] [Accepted: 01/31/2021] [Indexed: 11/22/2022] Open
Abstract
Little is known regarding patient experience and satisfaction with surgically assisted rapid maxillary expansion (SARME) and mandibular midline distraction (MMD). This study therefore aimed to assess patient experience and satisfaction with these techniques in two different groups. The first group answered the post-surgical patient satisfaction questionnaire on a 7-point Likert scale during a long-term follow-up recall. The second group answered a visual analogue scale questionnaire (range: 0-10) with different questions regarding experience and satisfaction, at different time points during the first year of treatment. In both groups, 17 patients were included. Regarding the post-surgical patient satisfaction questionnaire, a mean satisfaction rate of 6.4 (range: 4-7) was reported, with a mean follow-up of 6.5 years post-operatively. In the visual analogue scale group, the mean satisfaction rate was 8.0 and did not significantly differ from the expectations pre-operative (P = 0.96). Both procedures showed relatively low pain scores, although a significant higher score was observed in MMD post-operatively (P = 0.00051). Regarding hindrance, the scores were moderate; the bone-borne distractor in the mandible gained higher scores than the tooth-borne distractor in the mandible. In conclusion, both SARME and MMD gain high satisfaction rates.
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Dzingle J, Mehta S, Chen PJ, Yadav S. Correction of Unilateral Posterior Crossbite with U-MARPE. Turk J Orthod 2020; 33:192-196. [PMID: 32974066 DOI: 10.5152/turkjorthod.2020.20034] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Accepted: 05/18/2020] [Indexed: 11/22/2022]
Abstract
Unilateral posterior crossbite typically presents as a narrow maxillary arch and a broad mandibular arch on the side of the crossbite. Unwanted overexpansion and iatrogenic crossbite may develop as side effects if conventional rapid maxillary expansion is done in such cases. Thus, unilateral expansion of the maxilla with unilateral posterior crossbite can help us avoid these side effects and improve the transverse relationship between the maxillary and mandibular posterior dentition on the affected side only. In this case report, we describe a mini-implant-supported unilateral expansion of the maxillary arch in a patient with a unilateral posterior crossbite.
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Affiliation(s)
| | - Shivam Mehta
- Division of Orthodontics, University of Connecticut Health Center, School of Dental Medicine, Farmington, Connecticut, United States
| | - Po-Jung Chen
- Division of Orthodontics, University of Connecticut Health Center, School of Dental Medicine, Farmington, Connecticut, United States
| | - Sumit Yadav
- Division of Orthodontics, University of Connecticut Health Center, School of Dental Medicine, Farmington, Connecticut, United States
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Chen X, Zhu J, Guo S, Hu Y, Jiang H. CBCT study on the positional relationship between marginal points of pterygomaxillary junction and anterior nasal spine. Surg Radiol Anat 2020; 43:219-224. [PMID: 32970168 DOI: 10.1007/s00276-020-02582-9] [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: 07/12/2020] [Accepted: 09/15/2020] [Indexed: 11/29/2022]
Abstract
PURPOSE This study aimed to locate the inferior end (Pti) and the superior end (Pts) of pterygomaxillary junction (PMJ) relative to anterior nasal spine (ANS) so as to provide references for pterygomaxillary separation. METHODS The study was based on CBCT images of 109 Chinese patients. We projected Pti and Pts to the frontal plane and measured the distance as well as the positional relationship between the projection points and ANS via three-dimensional reconstruction image. RESULTS On average, the ANS was 5.18 mm above the Pti and the horizontal distance between the Pti and ANS was 21.86 mm. The horizontal and vertical distances between Pts and ANS was 20.41 mm and 10.91 mm, respectively. The vertical height of PMJ was 16.09 mm. Scatter plots diagrammatic centered on ANS showed that 73% (160/218) Pti and 64% (140/218) Pts appeared in a 45° fan shape ranged from 20 to 25 mm radius in bilateral inferior and superior quadrant, respectively. There was no significant difference in the distance between both sides (P > 0.05). CONCLUSION During the pterygomaxillary disjunction, it exists a risk of injuring neurovascular bundle of the pterygopalatine fossa 16.09 mm above the lowest border of the pterygomaxillary junction. The region within a 45° fan shape ranged in 20-25 mm radius in inferior quadrant centered on ANS might be suitable for the osteotome position. The positional relationship especially between the ANS and Pti found in this study provides a reference for surgeons during pterygomaxillary disjunction.
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Affiliation(s)
- Xin Chen
- Department of Oral and Maxillofacial Surgery, Affiliated Stomatological Hospital of Nanjing Medical University, No. 136, Hanzhong Road, Nanjing, 210029, Jiangsu, China.,Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Jiadong Zhu
- Department of Stomatology, Affiliated Suzhou Science and Technology Town Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Songsong Guo
- Department of Oral and Maxillofacial Surgery, Affiliated Stomatological Hospital of Nanjing Medical University, No. 136, Hanzhong Road, Nanjing, 210029, Jiangsu, China
| | - Yong Hu
- Department of Stomatology, Affiliated Suzhou Science and Technology Town Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China
| | - Hongbing Jiang
- Department of Oral and Maxillofacial Surgery, Affiliated Stomatological Hospital of Nanjing Medical University, No. 136, Hanzhong Road, Nanjing, 210029, Jiangsu, China. .,Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, 210029, Jiangsu, China.
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Copello FM, Marañón-Vásquez GA, Brunetto DP, Caldas LD, Masterson D, Maia LC, Sant'Anna EF. Is the buccal alveolar bone less affected by mini-implant assisted rapid palatal expansion than by conventional rapid palatal expansion?-A systematic review and meta-analysis. Orthod Craniofac Res 2020; 23:237-249. [PMID: 32187843 DOI: 10.1111/ocr.12374] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 02/29/2020] [Accepted: 03/13/2020] [Indexed: 12/12/2022]
Abstract
OBJECTIVE To systematically review the existing literature comparing mini-implant assisted rapid palatal expansion (MARPE) and conventional rapid palatal expansion (RPE) regarding the effect on the buccal alveolar bone thickness (BT) and marginal bone level (BL). METHODS PubMed/MEDLINE, Scopus, Web of Science, The Cochrane Library, Virtual Health Library, Embase, Ovid, LIVIVO, CINAHL, the Portal de Periódicos da CAPES, Google Scholar and SIGLE were searched up to January 2020. Risk of bias (RoB) assessments were performed using the Cochrane Collaboration and ROBINS-I tools. Fixed-effects meta-analysis of standardized mean differences (SMD) was implemented to assess the pooled estimates for the BT outcome. The analyses were performed adopting a significance level of 5%. A narrative synthesis was performed to summarize the results on the BL. The GRADE tool was used to assess the quality of the evidence. RESULTS Three randomized clinical trials and one retrospective study were included. Only one study was rated as with low RoB, while the others were scored as with moderate to serious RoB. Limited evidence indicated that patients using conventional RPE had a greater loss of the BT compared to patients using MARPE (SMD = 0.55; 95% CI: 0.29-0.80; P < .0001). Subgroup analyses showed that differences were significant in both premolars' regions, right (SMD = 0.75; 95% CI: 0.24-1.25; P = .004) and left (SMD = 1.05; 95% CI: 0.52-1.57; P < .0001), and these were not significant for the molars' regions (P > .05) (Low quality of evidence). LIMITATIONS Limited amount of selected papers, methodological issues that could lead to bias and high clinical heterogeneity among the studies. Due to the statistical model applied for the quantitative synthesis of the results, no generalization to any other population is recommended. CONCLUSIONS Limited evidence suggests that MARPE could decrease the loss of the buccal alveolar bone when compared to conventional RPE.
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Affiliation(s)
- Flávio Mendonça Copello
- Department of Pediatric Dentistry and Orthodontics, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | | | | | - Luciana Duarte Caldas
- Department of Pediatric Dentistry and Orthodontics, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Daniele Masterson
- Central Library of the Health Science Center, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Lucianne Cople Maia
- Department of Pediatric Dentistry and Orthodontics, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Eduardo Franzotti Sant'Anna
- Department of Pediatric Dentistry and Orthodontics, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
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