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Alcaraz Ros GDD, Eduardo Bravo Vallejo G, Peloso RM, Martins Gambardela-Tkacz C, Cotrin P, Maria Salvatore de Freitas K, Roberto de Freitas M. Smile attractiveness in patients treated with or without 4 premolar extractions: A 36-year follow-up. Am J Orthod Dentofacial Orthop 2024; 165:618-627. [PMID: 38456851 DOI: 10.1016/j.ajodo.2023.12.010] [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: 06/01/2023] [Revised: 12/01/2023] [Accepted: 12/01/2023] [Indexed: 03/09/2024]
Abstract
INTRODUCTION This study aimed to assess the smile attractiveness in patients treated with or without 4 premolar extractions at a 36-year follow-up. METHODS The sample comprised 52 patients with Class I and II malocclusion divided into 2 groups. Group 1 consisted of 15 patients treated without extractions (10 females and 5 males), with a mean pretreatment, posttreatment, and long-term posttreatment (T3) age of 13.2, 15.1, and 49.8 years, respectively. The mean treatment time was 1.9 years, and the mean long-term follow-up period was 34.7 years. Group 2 consisted of 37 patients (25 females and 12 males) treated with 4 premolar extractions, with a mean pretreatment, posttreatment, and long-term posttreatment age of 13.3, 15.7, and 53.6 years, respectively. The mean treatment time was 2.3 years, and the mean long-term follow-up period was 37.9 years. The mean retention time was 2 years for both groups. Frontal smiling photographs were obtained at long-term follow-up. Smile attractiveness was evaluated in an online questionnaire in which the evaluator could rate the smiling photographs with a 10-point scale. The randomly selected evaluator sample consisted of 62 laypeople, 33 dentists, and 89 orthodontists. Independent t tests, 1-way analysis of variance, and Tukey tests were used for intergroup comparisons at P <0.05. RESULTS The smile attractiveness on the long term was similar in the groups treated with 4 premolar extractions (4.70 ± 1.35) or without extractions (4.51 ± 1.46). Women and orthodontists were more critical in assessing smile attractiveness than men, dentists, and laypeople. CONCLUSIONS After long-term posttreatment, the smile attractiveness was similar in patients treated with 4 premolar extractions or without extractions.
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Affiliation(s)
| | | | - Renan Morais Peloso
- Department of Orthodontics, Bauru Dental School, University of São Paulo, Bauru, São Paulo, Brazil
| | | | - Paula Cotrin
- Department of Orthodontics, Bauru Dental School, University of São Paulo, Bauru, São Paulo, Brazil
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Bravo Vallejo G, Alcaraz Ros GDD, Peloso RM, Gambardela-Tkacz CM, Cotrin P, Freitas KMS, de Freitas MR. Long-term profile attractiveness of patients with Class I and II malocclusion treated with and without extractions: A 35-year follow-up. Am J Orthod Dentofacial Orthop 2024; 165:513-519. [PMID: 38231168 DOI: 10.1016/j.ajodo.2023.11.009] [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: 06/01/2023] [Revised: 11/01/2023] [Accepted: 11/01/2023] [Indexed: 01/18/2024]
Abstract
INTRODUCTION The objective of this study was to compare the profile attractiveness in subjects treated with and without extractions after the long-term 35-year follow-up, according to laypeople, dentists, and orthodontists. METHODS A total of 40 patients with Class I and II malocclusion were divided into 2 groups, according to the treatment protocol: extraction (E) group, extractions of 4 premolars (n = 24), with mean pretreatment (T1), posttreatment (T2), and long-term posttreatment (T3) ages of 13.13, 15.50 and 49.56 years, respectively. The mean treatment time (T2 - T1) was 2.37 years, and the long-term follow-up (T3 - T2) was 34.19. Nonextraction (NE) group (n = 16), with mean ages at T1, T2, and T3 of 13.21, 15.07, and 50.32 years, respectively. The mean (T2 - T1) was 1.86 years, and the (T3 - T2) was 35.25 years. Lateral cephalograms were used to perform profile facial silhouettes, and an online evaluation was performed by 72 laypeople, 63 dentists, and 65 orthodontists, rating the attractiveness from 1 (least attractive) to 10 (most attractive). The intragroup comparison was performed with the repeated measures analysis of variance and Tukey tests. Intergroup comparison was performed with t tests, 1-way analysis of variance, and Tukey tests. RESULTS The E group had a longer treatment time than that of the NE group. In the pretreatment, posttreatment, and long-term posttreatment stages, the E and NE groups showed similar profile attractiveness. Laypersons and dentists were more critical than orthodontists. CONCLUSIONS At long-term posttreatment follow-up, profile attractiveness was similar in patients treated with and without extractions.
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Affiliation(s)
- Gabriel Bravo Vallejo
- Department of Orthodontics, Bauru Dental School, University of São Paulo, Bauru, São Paulo, Brazil.
| | | | - Renan Morais Peloso
- Department of Orthodontics, Bauru Dental School, University of São Paulo, Bauru, São Paulo, Brazil
| | | | - Paula Cotrin
- Department of Orthodontics, Ingá University Center UNINGÁ, Maringá, Paraná, Brazil
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Albertini P, Albertini E, Zucchini L, Barbara L, Lombardo L. Profile changes in extraction treatments of upper premolars: A case series. Int Orthod 2023; 21:100809. [PMID: 37651761 DOI: 10.1016/j.ortho.2023.100809] [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: 07/04/2023] [Revised: 07/29/2023] [Accepted: 07/30/2023] [Indexed: 09/02/2023]
Abstract
This case series describes the soft tissue changes following extraction treatment in two patients with diverse lip thickness, but with similar baseline parameters including: labial competence, soft tissue profile, patient's age, extraction protocol, methods of anchorage, malocclusion, crowding, treatment appliance and mechanics. The same treatment plan involved upper first premolar extractions and lingual appliance combined with skeletal anchorage. The lip thickness played a crucial role in these cases, since a similar change of the incisor position leads to a different profile variation. This difference could be explained by the differing initial lip thicknesses as the patient with thin lips showed a more pronounced profilometric change. The choice of the ideal treatment plan must be tailored to the individual patient, taking into account not only initial skeletal and dental factors but also soft tissue factors, as well as the treatment goals.
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Affiliation(s)
- Paolo Albertini
- Department of Orthodontics, University of Ferrara, Ferrara, Italy; Private Practice, Via Livatino 9, 42124 Reggio Emilia, Italy.
| | - Enrico Albertini
- Department of Orthodontics, University of Ferrara, Ferrara, Italy; Private Practice, Via Livatino 9, 42124 Reggio Emilia, Italy
| | | | - Lorenza Barbara
- Department of Orthodontics, University of Ferrara, Ferrara, Italy
| | - Luca Lombardo
- Department of Orthodontics, University of Ferrara, Ferrara, Italy
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Pozza OA, Cançado RH, Valarelli FP, Freitas KMS, Oliveira RC, Oliveira RCGD. Attractiveness of the facial profile: comparison of Class II patients treated with Twin Force® or intermaxillary elastics. Dental Press J Orthod 2021; 26:e212014. [PMID: 34669827 PMCID: PMC8529958 DOI: 10.1590/2177-6709.26.5.e212014.oar] [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: 02/10/2020] [Accepted: 06/18/2020] [Indexed: 11/22/2022] Open
Abstract
Objective: To compare the facial profile attractiveness of Class II patients treated with Twin Force® or intermaxillary elastics. Methods: Sample comprised 47 Class II patients divided into two groups: G1) TWIN FORCE - 25 patients treated with fixed appliances and Twin Force® fixed functional appliance (mean initial age was 17.91 ± 7.13 years, mean final age was 20.45 ± 7.18 years, and mean treatment time was 2.53 ± 0.83 years); G2) ELASTICS - 22 patients treated with fixed appliances and Class II intermaxillary elastics (mean initial age was 15.87 ± 5.64 years, mean final age was 18.63 ± 5.79 years and mean treatment time was 2.75 ± 0.60 years). Lateral cephalograms from pretreatment and posttreatment were used. Cephalometric variables were measured and silhouettes of facial profile were constructed and evaluated by 48 laypeople and 63 orthodontists, rating the attractiveness from 0 (most unattractive profile) to 10 (most attractive profile). Intergroup comparisons were performed with Mann-Whitney and independent t-tests. Results: At pretreatment, facial profile of the Twin Force® group was less attractive than the Elastics group. Treatment with Twin Force® or Class II elastics resulted in similar facial profile attractiveness, but the facial convexity was more reduced in the Twin Force® group. Orthodontists were more critical than laypeople. Conclusions: Treatment with Twin Force® or Class II elastics produced similar facial profile attractiveness at posttreatment. Profile attractiveness was reduced with treatment in the elastic group, and improved in the Twin Force® group. Facial convexity was more reduced with treatment in the Twin Force® group.
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Affiliation(s)
- Otávio Augusto Pozza
- Centro Universitário Ingá - Uningá, Departamento de Ortodontia (Maringá/PR, Brazil)
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Comparison of Profile Attractiveness between Class III Orthodontic Camouflage and Predictive Tracing of Orthognathic Surgery. Int J Dent 2020; 2020:7083940. [PMID: 32963533 PMCID: PMC7492899 DOI: 10.1155/2020/7083940] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 07/07/2020] [Accepted: 08/25/2020] [Indexed: 11/17/2022] Open
Abstract
Objective The aim of this study was to compare the profile attractiveness between orthodontic camouflage of the Class III malocclusion and the predictive tracing simulating orthognathic surgery evaluated by dentists and laypeople. Settings and sample population. The sample consisted of 21 patients (9 male; 12 female) with Class III malocclusion treated with orthodontic camouflage and Class III intermaxillary elastics. Material and Methods. The mean initial age of the patients was 24.38 years (SD 3.32), and the mean ANB angle was −1.91° (SD 0.83°). Patients presented skeletal Class III and normal growth patterns. Initial and final lateral cephalograms of each patient were used. The initial cephalogram was used to perform the treatment simulation of orthognathic surgery, and its silhouette was compared to the silhouette obtained from the final cephalogram after Class III orthodontic camouflage. A subjective analysis of profile attractiveness was performed by 47 laypeople and 60 dentists, with scores from 1 (less attractive) to 10 (most attractive). Mann–Whitney tests were used to compare profile attractiveness between the orthodontic treatment and the predictive tracing groups and between dentists and laypeople. Results The predictive tracing of orthognathic surgery showed to be statistically significantly more attractive (mean score 4.57, SD 2.47) than that of the Class III camouflage orthodontic treatment (mean score 4.22, SD 2.40), with a mean numerical but significant difference of 0.35 (SD 2.01) (P < 0.001). Laypeople were more critical than dentists in evaluating profile attractiveness, but numerical difference between the groups was also small. Conclusion The profile silhouette of predictive tracing simulating orthognathic surgery showed to be more attractive than that of Class III camouflage orthodontic treatment; however, differences were small but statistically significant. Laypeople showed to be more critical than dentists.
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Watanabe JHM, Fitarelli F, de Freitas DS, Cançado RH, de Oliveira RCG, de Oliveira RCG, Valarelli FP, Freitas KMS. Comparison of the facial profile attractiveness in Class III borderline patients after surgical or compensatory orthodontic treatment. J Clin Exp Dent 2020; 12:e348-e353. [PMID: 32382384 PMCID: PMC7195682 DOI: 10.4317/jced.56750] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Accepted: 01/27/2020] [Indexed: 11/05/2022] Open
Abstract
Background This study aimed to compare the facial profile attractiveness of Class III borderline patients after surgical or compensatory orthodontic treatment. Material and Methods The sample consisted of 60 borderline Class III malocclusion patients, divided into two groups: Group 1 (Surgical): 30 patients (16 male; 14 female) treated with orthodontic fixed appliances and bimaxillary orthognathic surgery. Mean initial age was 20.05 years (s.d.=2.40) and mean treatment time was 2.23 years (s.d.=0.82). Group 2 (Compensatory): 30 patients (13 male; 17 female) treated compensatorily with fixed appliances and Class III elastics. Mean initial age was 18.53 years (s.d.=4.35) and mean treatment time was 2.08 years (s.d.=0.67). Silhouettes of the facial profile were constructed obtained from the pretreatment and posttreatment lateral cephalograms and evaluated by orthodontists (N=41, 22 females and 19 males, mean age of 35.65 years), assigning scores from 1 (least attractive) to 10 (most attractive). Intergroup comparison of profile attractiveness was performed by Mann-Whitney test. For intragroup comparison of initial and final stages, the Wilcoxon test was used. Results At initial stage, the compensatory group presented a statistically significant greater attractiveness of the profile than the surgical group. With treatment, the surgical group presented significantly more improvement in facial profile than the compensatory group. At the final stage, profile attractiveness of surgical and compensatory groups was similar. Conclusions The facial profile attractiveness is similar in Class III patients after orthognathic surgery or compensatory orthodontic treatment. However, surgery provided more improvement in profile attractiveness than the compensatory treatment in Class III patients. Key words:Malocclusion, angle Class III, orthognathic surgery, corrective orthodontics.
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Affiliation(s)
| | - Francisco Fitarelli
- DDS, MSc. Orthodontic Graduate Student. Department of Orthodontics. UNINGÁ University Center. Maringá, Brazil
| | | | - Rodrigo-Hermont Cançado
- DDS, MSc, PhD. Professor. Department of Orthodontics. UNINGÁ University Center. Maringá, Brazil
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Rosa M. Missing teeth in the smile area: space closure in all malocclusions looking for long term health, esthetics and function. Semin Orthod 2020. [DOI: 10.1053/j.sodo.2020.01.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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