Submit to Applied Sciences Review for Applied Sciences Propose a Special Issue

Journal Browser

Clinical Applications of Orthodontic TSADs and CBCT

Print Special Issue Flyer
Special Issue Editors
Special Issue Information
Keywords
Published Papers

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Applied Biosciences and Bioengineering".

Deadline for manuscript submissions: closed (20 October 2023) | Viewed by 24084

Share This Special Issue

Special Issue Editor

Prof. Dr. Jong-Moon Chae

E-Mail Website
Guest Editor

Department of Orthodontics, School of Dentistry, University of Wonkwang, Iksan 54538, Republic of Korea
Interests: extra-alveolar and intra-alveolar TSADs; three-dimensional tooth movement; transverse expansion; CBCT; three-dimensional diagnosis and analysis
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

This Special Issue aims to enumerate the clinical application of various orthodontic temporary skeletal anchorage devices (TSADs) and cone-beam computed tomography (CBCT). With their advent, the range of orthodontic diagnosis and camouflage treatments expanded through their selective application to obtain the essential mechanics and evidence allowing for the achievement of acceptable treatment results. Presently, TSADs and CBCT are no longer novel within the orthodontic field, but are essentially involved and designed in the orthodontic diagnosis and treatment planning processes to achieve more effective tooth movement and better treatment results. Therefore, in this Special Issue, we seek several authors to contribute articles demonstrating the broad clinical applications of various TSADs and CBCT.

Prof. Dr. Jong-Moon Chae
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Applied Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

extra-alveolar and intra-alveolar TSADs
three-dimensional tooth movement
transverse expansion
CBCT
three-dimensional diagnosis and analysis

Published Papers (13 papers)

Download All Papers

Research

Jump to: Review, Other

12 pages, 7999 KiB

Open AccessArticle

The Center of Resistance of an Impacted Maxillary Canine: A Finite Element Analysis

by Sewoong Oh, Youn-Kyung Choi, Yong-Il Kim, Seong-Sik Kim, Soo-Byung Park and Sung-Hun Kim

Appl. Sci. 2023, 13(20), 11256; https://doi.org/10.3390/app132011256 - 13 Oct 2023

Viewed by 971

Abstract

The aim of this study was to calculate the center of resistance (COR) of an impacted maxillary canine according to the stages of pericoronal tissue healing using the finite element method (FEM). The maxillary canine model was three-dimensionally scanned, and the structures surrounding the tooth were modeled using a computer-aided design program. The COR was calculated in the buccolingual (BL) and mesiodistal (MD) directions using the FEM. After applying a single force to a specific point of the tooth, several counter moments were applied to compensate for this at the same point. Thereafter, the displacement curve of the tooth axis for each counter moment was plotted. The intersection points between the displacement curves corresponded to the COR. At the beginning of healing, the COR of the MD and BL direction was located at 38.1% and 38.7% of the root length from the cementoenamel junction, respectively. At the end of healing, the COR of the MD and BL direction was located at 44.6% and 49.8% of the crown length from the cementoenamel junction, respectively. The COR of the impacted maxillary canine gradually shifts to the coronal side as the healing of the pericoronal tissue occurs. Full article

(This article belongs to the Special Issue Clinical Applications of Orthodontic TSADs and CBCT)

► Show Figures

Figure 1

12 pages, 1026 KiB

Open AccessArticle

Skeletal and Dentoalveolar Effects of Maxillary Protraction Using Tooth- and Miniscrew-Anchored Devices in Patients with Class III Malocclusion with Maxillary Deficiency: A Retrospective Follow-Up Study

by Jong-Chan Baik, Youn-Kyung Choi, Hyeran Helen Jeon, Sung-Hun Kim, Seong-Sik Kim, Soo-Byung Park and Yong-Il Kim

Appl. Sci. 2023, 13(18), 10530; https://doi.org/10.3390/app131810530 - 21 Sep 2023

Viewed by 1299

Abstract

Introduction: This retrospective study aimed to determine skeletal and dental changes after a growth spurt and shortly after treatment using a facemask in skeletal Class III malocclusion with maxillary deficiency. Methods: We retrospectively studied 50 patients (25 patients per group) with skeletal Class III malocclusion who underwent facemask treatment with tooth-anchored (T-A, mean age 7.92) and miniscrew-anchored (M-A, mean age 9.84) intraoral appliances. In both groups, the facemask applied a traction force of 350–400 g to each side, such that the traction was directed 30° forward and downward. Lateral cephalometric radiographs were obtained from all patients before (T1), immediately after (T2), and at an average of 37.11 months after maxillary protraction (T3). A total of 13 cephalometric measurements were analyzed to determine the skeletal and dental changes. A paired t-test was used to verify the effects before, after, and during follow-up periods in each group. Results: An anteroposterior relationship, the values of SNA and ANB, evident in both groups at T2, was significantly improved in the M-A group (p < 0.05). However, the values of ANB and MP–SN, which indicate the relapse of anteroposterior and vertical relation of maxilla and mandible, were significantly higher in the T-A group compared with the M-A group during follow-up period. The maxillary first molars were significantly more extruded and maxillary incisors were more protruded in the T-A group than the M-A group, and this persisted at T3 (p < 0.05). Conclusions: Miniscrew-anchored maxillary protraction increased the skeletal improvement of anteroposterior relationship and reduced the dental and skeletal relapses compared with tooth-anchored maxillary protraction in growing patients with a hyperdivergent patterns and skeletal Class III malocclusion. Full article

(This article belongs to the Special Issue Clinical Applications of Orthodontic TSADs and CBCT)

► Show Figures

Figure 1

10 pages, 3255 KiB

Open AccessArticle

Long Term Skeletal, Alveolar, and Dental Expansion Effects of the Midfacial Skeletal Expander

by Catherine Ding, Ney Paredes, Ben Wu and Won Moon

Appl. Sci. 2023, 13(17), 9569; https://doi.org/10.3390/app13179569 - 24 Aug 2023

Viewed by 992

Abstract

Background: The Midfacial Skeletal Expander (MSE) produces a greater skeletal effect than its dentoalveolar side effects. The aim of this study was to quantify the stability of the different components of MSE expansion post-orthodontic treatment. Methods: Fourteen subjects (mean age of 20.4 ± 3.5 years) were treated with the MSE. The pre-expansion (T0), post-expansion (T1), and post-treatment (T2) CBCT records were superimposed and compared. The rotational fulcrum of the zygomaticomaxillary complex was identified, and angular measurements were generated to assess changes in the zygomaticomaxillary complex (skeletal expansion), dentoalveolar bone (alveolar bone bending), and maxillary first molars (dental tipping). The stability of all three components after orthodontic treatment was also assessed by comparing changes between T0–T1 and T0–T2. Results: Post-expansion, angular measurements showed that skeletal expansion accounted for 87.50% and 88.56% of total expansion, alveolar bone bending for 7.09% and 5.23%, and dental tipping for 5.41% and 6.21% on the right and left sides, respectively. Post-treatment skeletal expansion relapsed by 11.20% and 13.28% on the right and left sides, respectively. Conclusions: The MSE mainly produces skeletal changes with insignificant and negligible dentoalveolar changes immediately after expansion. In the long term, the majority of skeletal expansion was maintained. Full article

(This article belongs to the Special Issue Clinical Applications of Orthodontic TSADs and CBCT)

► Show Figures

Figure 1

12 pages, 1832 KiB

Open AccessArticle

Temporomandibular Joint Space Changes in Skeletal Class III Malocclusion Patients with Orthognathic Surgery

by Sung-Hoon Han, Jae Hyun Park, Hye Young Seo and Jong-Moon Chae

Appl. Sci. 2023, 13(16), 9241; https://doi.org/10.3390/app13169241 - 14 Aug 2023

Cited by 1 | Viewed by 880

Abstract

The purpose of this retrospective study was to evaluate changes in the temporomandibular joint spaces (TMJSs) in skeletal Class III adult patients with orthognathic surgery using cone-beam computed tomography (CBCT). CBCT images taken from 26 orthognathic surgery adult patients (15 females, 11 males, average 19.6 ± 2.8 years at pretreatment, range 15.8–26.8 years) with skeletal Class III malocclusion (ANB < 1°) were used for this study. TMJSs (AS, anterior space; SS, superior space; PS, posterior space; MS, medial space; CS, central space; LS, lateral space) were measured at each stage of treatment (T0, pretreatment; T1, presurgery; T2, postsurgery; T3, posttreatment, and T4, retention) and were compared according to gender, side, vertical skeletal pattern, number of surgery sites, and amount of mandibular setback. At T0, TMJSs were significantly greater in SS than in AS and PS. The ratio of AS to SS to PS was 1.0 to 1.5 to 1.1. TMJSs were significantly greater in MS and CS than in LS. The ratio of MS to CS to LS was 1.0 to 1.0 to 0.8. All TMJSs in males were significantly greater than in females except in PS. TMJSs on the left side were significantly greater than on the right side only in PS. TMJSs were not significantly different depending on the SN-MP, number of surgery sites, and amount of setback. From T0 to T4, there were no significant changes in TMJSs or their ratios according to gender, side, sella to nasion (SN), mandibular plane (MP), number of surgery sites, and amount of setback. Exceptionally, at T4, SS and CS were significantly greater in the small amount of setback group than in the large amount of setback group. There were no statistical changes in TMJSs throughout all stages when skeletal Class III patients were treated with surgery. Full article

(This article belongs to the Special Issue Clinical Applications of Orthodontic TSADs and CBCT)

► Show Figures

Figure 1

12 pages, 10885 KiB

Open AccessArticle

Treatment Effects of Miniscrew-Assisted Rapid Palatal Expansion in Adolescents Using Cone-Beam Computed Tomography

by Jung Jin Park, Kyung-A Kim, Hye-Rin Kim, Sung Ok Hong and Yoon-Goo Kang

Appl. Sci. 2023, 13(10), 6309; https://doi.org/10.3390/app13106309 - 22 May 2023

Cited by 1 | Viewed by 1444

Abstract

This study aimed to analyze the treatment effects of miniscrew-assisted rapid palatal expansion using dental cone-beam computed tomography (CT) in adolescents. The study group comprised 20 patients who underwent cone-beam CT before and after miniscrew-assisted rapid palatal expansion (MARPE). Paired t-test and analysis of variance were used to analyze significant differences before and after treatment. Skeletal and dentoalveolar measurements indicated highly significant differences, with these expansions increasing progressively in the downward direction. The extent of anterior midpalatal suture expansion was significantly greater than that of the posterior part. Significant expansion was observed at the nasal width and inter-zygomaticomaxillary suture distance. MARPE can expand the craniofacial skeletal structure to the uppermost nasal bone and lateral to the zygomaticomaxillary sutures. The expansion was greater in the lower maxillary part, demonstrating an overall triangular maxillary expansion. The midpalatal suture opening was greater in the anterior than in the posterior side, whereas the posterior suture opening proportion was higher than that of the conventional rapid palatal expansion previously reported. Full article

(This article belongs to the Special Issue Clinical Applications of Orthodontic TSADs and CBCT)

► Show Figures

Figure 1

13 pages, 3079 KiB

Open AccessArticle

Finite Element Analysis of Maxillary Teeth Movement with Time during En Masse Retraction Using Orthodontic Mini-Screw

by Jeong-Bo Hwang and Sung-Seo Mo

Appl. Sci. 2023, 13(6), 3579; https://doi.org/10.3390/app13063579 - 10 Mar 2023

Viewed by 1349

Abstract

Introduction: The aim of this study was to determine the placement of an orthodontic mini-screw (OMS) and the length of an anterior retraction hook (ARH) with en masse retraction. Continuous maxillary tooth movement pattern was simulated by finite element analysis (FEA). Materials and methods: Extraction of the first premolar was hypothesized with a finite element model. The placement of OMS was analyzed for the following two groups: (1) a high OMS (HOMS) group with OMS placed horizontally at the mesial side of the second premolar and apically 10 mm above the arch wire, and (2) a low OMS (LOMS) group with OMS placed horizontally between the second premolar and the first molar and apically 8 mm above the arch wire. According to the height of ARH, each group was divided into three subgroups. Results: When the extraction space of the first premolar was closed, anterior teeth were intruded in the HOMS group but extruded in the LOMS group. In all cases, the first molar was intruded. According to the intrusion of the first molar and extrusion of anterior teeth, the occlusal plane rotated clockwise (CW) in the LOMS group. However, in the HOMS1 group, the occlusal plane rotated counterclockwise (CCW) due to more intrusion of anterior teeth than that of the first molar. Conclusion: By analyzing six cases of different OMS and ARH, changes of incisor and molar in en masse retraction with the extraction of the first premolar could be predicted. In addition, OMS placement and ARH length can be determined based on results of incisal showing. This study can also help esthetic orthodontic results. Full article

(This article belongs to the Special Issue Clinical Applications of Orthodontic TSADs and CBCT)

► Show Figures

Figure 1

12 pages, 2070 KiB

Open AccessArticle

A CBCT Evaluation of the Proximity of Mandibular Molar Roots and Lingual Cortical Bone in Various Vertical Facial Patterns and Factors Related to Root-Cortical Bone Contact

by Sung-Kwon Choi, Jae Hyun Park, Jong-Moon Chae, Na-Young Chang and Kyung-Hwa Kang

Appl. Sci. 2023, 13(6), 3444; https://doi.org/10.3390/app13063444 - 8 Mar 2023

Cited by 1 | Viewed by 1543

Abstract

The objective of this study was to assess the proximity of the mandibular molar roots and the lingual cortical bone in patients with various vertical facial patterns and determine factors related to root-cortical bone contact. A total of 145 patients (84 males, 61 females, mean age: 22.0 ± 1.76 years) were assigned to hypodivergent (36 patients), normovergent (80 patients) and hyperdivergent (29 patients) groups based on their facial height ratio. Cone-beam computed tomography (CBCT) images were used to measure the distance between the mandibular molar roots and the lingual cortical bone, and any instances of root-cortical bone contact were identified. The study investigated the correlation between the contact of the mandibular molar roots with the lingual cortical bone and several variables, including sex and cephalometric measurements. The distance between the mandibular molar roots and the lingual cortical bone was significantly shorter in the hyperdivergent group than in the hypodivergent group (p < 0.05). Of the total root-cortical bone contact, 87.6% was observed in the mandibular second molars, and the distal roots of the mandibular second molars had the highest contact rate at 43.1% in the hyperdivergent group (p < 0.05). Among the evaluated variables, only the distance between the distal root apex of the mandibular second molar and the mandibular plane was found to be associated with contact of the mandibular molar roots with the lingual cortical bone. An increase of 1 mm in this distance was associated with a 22% decrease in the likelihood of contact between the mandibular second molar roots and lingual cortical bone (p < 0.001). Given the proximity and high contact ratio between the mandibular molar roots and lingual cortical bone, it is recommended that these structures be evaluated using CBCT before planning molar distalization or intrusion in hyperdivergent patients. Full article

(This article belongs to the Special Issue Clinical Applications of Orthodontic TSADs and CBCT)

► Show Figures

Figure 1

11 pages, 694 KiB

Open AccessArticle

Survival Analysis of Orthodontic Micro-Implants: A Retrospective Study on the Effects of Patient-Related Factors on Micro-Implant Success

by Jung-Kwang Lee, Nayansi Jha, Yoon-Ji Kim and Dong-Yul Lee

Appl. Sci. 2022, 12(22), 11655; https://doi.org/10.3390/app122211655 - 16 Nov 2022

Viewed by 1048

Abstract

The purpose of this study was to investigate the effects of patient-related factors such as anteroposterior and vertical skeletal patterns and alveolar bone density on the success rate of micro-implants. Cases of orthodontic micro-implants (n = 404; diameter, 1.6 mm; length, 6 mm) were investigated in 164 patients (127 women, 37 men; mean age, 23.6 ± 5.8 years). Cortical bone thickness and alveolar bone density were measured using diagnostic cone-beam computed tomography to examine their effects on the micro-implant’s survival. Moreover, anteroposterior and vertical facial patterns were considered as independent variables for the success of micro-implants. Marginal survival analysis was performed by analyzing the time from implant placement to the removal of the failed micro-implants, or to the end of treatment for successful micro-implants. Variables including age, sex, implantation side, implantation site, root proximity, and type of loading (immediate vs. delayed) were also assessed. In total, 347 (85.9%) of the 404 micro-implants were successful. The mean loading time was 12.4 ± 4.3 months. Marginal survival analysis showed that the effects of the anteroposterior and vertical facial patterns on the risk of failure were not statistically significant. The factors significantly associated with the micro-implant loading time were cortical bone density, root proximity, and micro-implants replanted in the same site. In conclusion, our findings indicate that anteroposterior and vertical skeletal patterns are not associated with the success of orthodontic micro-implants. Cortical bone density may be associated with the micro-implant’s success. Full article

(This article belongs to the Special Issue Clinical Applications of Orthodontic TSADs and CBCT)

► Show Figures

Figure 1

Review

Jump to: Research, Other

18 pages, 2362 KiB

Open AccessReview

Is There a Difference in Mid-Palatal Suture Density after Rapid Maxillary Expansion, Surgically Assisted Rapid Maxillary Expansion, and Miniscrew-Assisted Rapid Palatal Expansion? A Systematic Review and Meta-Analysis

by Laura Mello Figueiredo, Daniella Mascarenhas Calixto Barros, Natalia Costa Veloso, Cinthia Oliveira Lisboa, Carlos Fernando Mourão, Adriana de Alcantara Cury-Saramago, Claudia Trindade Mattos and Jose de Albuquerque Calasans-Maia

Appl. Sci. 2023, 13(19), 10841; https://doi.org/10.3390/app131910841 - 29 Sep 2023

Cited by 1 | Viewed by 761

Abstract

The aim of this systematic review and meta-analysis was to evaluate the density of the midpalatal suture (MPS) of individuals with maxillary expansion (rapid maxillary expansion, RME), surgically assisted rapid maxillary expansion (SARPE), and miniscrew-assisted rapid palatal expansion (MARPE) through computed tomography. An electronic search was performed in four databases, MEDLINE via PubMed, SCOPUS, Web of Science, and Cochrane Central Register of Controlled Trials (CENTRAL) in February 2023 and updated in April 2023, using previously established search strategies. Studies were retrieved without restrictions in terms of data, language, or publication status. The risk of bias assessment was based on a quality assessment tool for before-and-after studies. Ten studies were included in our systematic review, and nine studies were included for our quantitative analysis. The analyses were performed by subgroup according to the evaluation of the region, anterior, middle, and posterior, including the three types of treatment: RME, SARPE, and MARPE. Heterogeneity was high for the three regions (anterior 95%, medium 97%, and posterior 84%) and a statistical difference was found in two of the three regions (anterior p = 0.06, medium p = 0.031, and posterior p < 0.001). There is not enough evidence to state that the MPS density is different after 6 months of RME in the anterior and middle regions; the bone density values for SARPE and MARPE suggest that 6 or 7 months after expansion, there is still no bone density similar to the initial one in the three regions. Full article

(This article belongs to the Special Issue Clinical Applications of Orthodontic TSADs and CBCT)

► Show Figures

Figure 1

17 pages, 2069 KiB

Open AccessReview

Optimal Insertion Torque for Orthodontic Anchoring Screw Placement: A Comprehensive Review

by Yasuki Uchida, Yasuhiro Namura and Mitsuru Motoyoshi

Appl. Sci. 2023, 13(19), 10681; https://doi.org/10.3390/app131910681 - 26 Sep 2023

Viewed by 537

Abstract

The optimal insertion torque (IT) for orthodontic anchoring screws (OASs) was hypothesized to vary with OAS features and insertion methods. This review examines the indexed English literature, to determine the appropriate IT range for OAS success based on area of insertion and OAS features. Eleven original articles with OAS placement in humans including IT and success rate were selected and were used to evaluate the relationships among IT, success rates, screw design, and placement methods at different sites. The ITs and success rates ranged from 6.0 ± 3.2 to 15.7 ± 2.3 Ncm and from 62.5 to 100.0% in the upper and lower buccal alveolar areas, respectively. For the mid-palatal area, the range was 14.5 ± 1.6 to 25.6 ± 5.5 Ncm and 83.0 to 100.0%, respectively. ITs of 5–12 and 6–14 Ncm were found to be optimal for the commonly used φ1.5–1.7 mm OASs in the upper and lower interproximal areas, respectively. In the mid-palatal suture area, ITs of 11–16 and 20–25 Ncm were considered suitable for tapered φ1.5 mm and φ2.0 mm OASs, respectively. Although identified optimal IT ranges deserve the recommendations, care must be taken to monitor the IT during placement constantly. Full article

(This article belongs to the Special Issue Clinical Applications of Orthodontic TSADs and CBCT)

► Show Figures

Figure 1

Other

Jump to: Research, Review

18 pages, 11647 KiB

Open AccessCase Report

Nonextraction Orthodontic Treatment of Severely Impacted Maxillary Canines through Transalveolar Transplantation in a 10-Year-Old Patient: A Case Report with a 6-Year Follow-Up Period

by Jae Hyun Park, Jiyoung Oh, Kooyoung Lim, Alex Hung Kuo Chou, Yoon-Ah Kook and Seong Ho Han

Appl. Sci. 2023, 13(21), 11665; https://doi.org/10.3390/app132111665 - 25 Oct 2023

Viewed by 1296

Abstract

Objective: This case report describes the interdisciplinary treatment of a 10-year-old girl with asymmetric Class III malocclusion, severe maxillary crowding, and bilaterally impacted maxillary canines. Clinical considerations: The clinical decision-making factors regarding treatment alternatives and the final treatment plan are discussed. A two-phase nonextraction therapy was implemented to relieve severe crowding, eliminate the maxillary canine impactions, and compensate for skeletal Class III malocclusion. The first treatment phase involved aligning the left canine through conventional orthodontic traction, while the more deeply horizontally impacted right canine was corrected through transalveolar transplantation. In the second phase, the Class III dental relationship was corrected through mandibular molar retraction. The effective use of various temporary skeletal anchorage devices such as modified c-palatal plates and mini-implants was illustrated. Conclusions: At the end of the treatment, esthetic dental alignment was achieved, along with improved facial balance. The transplanted maxillary right canine showed good health and a favorable long-term prognosis over six years after the procedure. Full article

(This article belongs to the Special Issue Clinical Applications of Orthodontic TSADs and CBCT)

► Show Figures

Figure 1

13 pages, 12253 KiB

Open AccessPerspective

Open-Bite Correction Using a Mid-Palatal TAD with an Intrusion TPA: Anteroposterior Position of TAD

by Tae-Woo Kim and Tingxi Wu

Appl. Sci. 2023, 13(9), 5464; https://doi.org/10.3390/app13095464 - 27 Apr 2023

Cited by 1 | Viewed by 5040

Abstract

Mechanics using a mid-palatal temporary anchorage device (TAD) and an intrusion transpalatal arch (TPA) were applied to correct the open bites. Two different intrusion patterns could be obtained according to the anteroposterior position of mid-palatal TADs. When the TAD was placed posterior to the first molar, the posterior teeth were intruded (“posterior intrusion”), and the open bite was corrected efficiently. This is commonly used in most open bites. However, sometimes, in an open bite with a gummy smile, intrusion of the maxillary anterior teeth, as well as the posterior teeth, may be necessary. In this case, the TAD was placed anterior to the first molar, and a “total intrusion” was obtained, including anterior intrusion. In conclusion, the intrusion pattern of the maxillary teeth differs depending on the anterior–posterior position of the mid-palatal TAD, necessitating posterior intrusion or Total intrusion. Full article

(This article belongs to the Special Issue Clinical Applications of Orthodontic TSADs and CBCT)

► Show Figures

Figure 1

15 pages, 8399 KiB

Open AccessCase Report

Non-Surgical Camouflage Treatment of a Skeletal Class III Patient with Anterior Open Bite and Asymmetry Using Orthodontic Miniscrews and Intermaxillary Elastics

by Ye-Ji Seo, Jae Hyun Park, Na-Young Chang and Jong-Moon Chae

Appl. Sci. 2023, 13(7), 4535; https://doi.org/10.3390/app13074535 - 3 Apr 2023

Cited by 4 | Viewed by 5900

Abstract

This case report presents the non-surgical orthodontic camouflage treatment of an 18-year-old male patient with skeletal Class III asymmetry and severe anterior open bite. The anterior open bite was corrected by extrusion of the maxillary and mandibular anterior teeth and clockwise and counterclockwise rotation of the maxillary and mandibular occlusal plane, respectively, using intermaxillary Class III elastics between the maxillary posterior buccal miniscrews and mandibular canines and anterior vertical elastics between the maxillary and mandibular canines. Class III dental relationships and dental asymmetry were corrected via unilateral distalization of the mandibular dentition on the left side using a closed coil spring between the buccal shelf screw and hook. The patient’s smile esthetics and dental relationship were improved with a more favorable facial profile, and facial asymmetry was slightly alleviated after orthodontic camouflage treatment. The total treatment time was 15 months. A modified wraparound retainer with a scalloped labial bow, tongue crib, and tooth positioner was used simultaneously to prevent the potential relapse. Full article

(This article belongs to the Special Issue Clinical Applications of Orthodontic TSADs and CBCT)

► Show Figures

Figure 1

Journal Menu

Journal Browser

Clinical Applications of Orthodontic TSADs and CBCT

Share This Special Issue

Special Issue Editor

Special Issue Information

Keywords

Published Papers (13 papers)

Research

Review

Other

Further Information

Guidelines

MDPI Initiatives

Follow MDPI