Oral health-related quality of life changes in patients with severe Class III malocclusion treated with the 2-jaw surgery-first approach.

INTRODUCTION: In this nonrandomized prospective study, we compared the effects of the surgery-first approach with conventional 2-jaw orthognathic surgery on skeletal Class III patients' oral health-related quality of life (OHRQoL), quality of the orthodontic outcome, and average treatment duration. METHODS: The sample consisted of 16 patients with severe skeletal Class III malocclusion, who needed 2-jaw orthognathic surgery: 8 were treated with the surgery-first approach, and 8 were treated with the traditional orthodontic-surgical approach. OHRQoL was assessed by using the Orthognathic Quality of Life Questionnaire (OQLQ) and the Oral Health Impact Profile-short version (OHIP-14). Malocclusion severity and esthetic self-perception were assessed with the Index of Orthodontic Treatment Need. Dental health status was determined using the Decayed, Missing and Filled Teeth Index. Tests were repeated at 7 times: baseline, 1 month after appliance placement, and 3 months, 6 months, 1 year, and 2 years after the beginning of the treatment; and for both groups, there was an also evaluation stage after the orthognathic surgery. RESULTS: After 2 years, the surgery-first group showed a significant decrease in malocclusion severity (P <0.001) and had significant reductions in OQLQ (P <0.001) and OHIP-14 scores (P <0.001). These changes began after the orthognathic surgery and were progressive throughout the evaluation periods. In the traditional orthodontic-surgical approach group, after 2 years of monitoring, all patients were still in the preoperative orthodontic preparation phase, and their malocclusion severity increased significantly, thereby resulting in a not statistically significant worsening of their OHRQoL (OHIP-14, P = 0.89; OQLQ, P = 0.11). CONCLUSIONS: OHRQoL improved significantly in a linear trend of progressive improvements in all severe Class III patients who had the surgery-first approach after the surgical procedure through 2 years of follow-up, as their malocclusion and esthetic self-perception also improved.

Premolar transplantation to replace a missing central incisor.

During childhood, the anterior maxilla is susceptible to injury, and the loss of incisors is one of the most serious injuries. In many cases, autotransplantation is the best alternative for children who lose an incisor during the growth phase. This case report describes the treatment of a boy who had a traumatic injury when he was 8 years old that resulted in avulsion of the maxillary right central incisor. When he sought treatment at age 10, the space was lost as was bone in the incisor region. Because he lacked space in the mandibular arch for proper tooth alignment, extractions were planned. One extracted premolar was transplanted into the space of the missing maxillary incisor area. The posttreatment results were good, and follow-up records 7 and 9 years after treatment showed healthy periodontal support and cortical bone gain in the transplanted tooth's buccal area.

Psychometric properties of the Brazilian version of the Orthognathic Quality of Life Questionnaire.

PURPOSE: To assess the construct validity and reliability of the Brazilian version of the Orthognathic Quality of Life Questionnaire (B-OQLQ). MATERIALS AND METHODS: A cross-sectional study was performed, and 101 patients in need of orthodontic-surgical treatment were recruited at a public hospital (Hospital Universitário Pedro Ernesto) and a public dental school (Faculdade de Odontologia da Universidade do Estado do Rio de Janeiro). The B-OQLQ was self-completed. The mean age of the participants was 26.51 ± 9.25 years, and most were female (58.42%; n = 59). The construct validity was assessed using Spearman's correlation coefficient between the B-OQLQ and the Oral Health Impact Profile (OHIP-14) scores and between the B-OQLQ and subjective health indicators' scores. The reliability was assessed in terms of internal consistency and stability (test-retest) using Cronbach's alpha and the intraclass correlation coefficient (ICC), respectively. RESULTS: Significant correlations were found between the B-OQLQ scores and the following: OHIP-14 total score (rs = 0.70, P < .001), perception of oral health (rs = -0.24, P = .02), single-item evaluation of quality of life (rs = -0.29, P = .03), satisfaction with physical appearance (rs = -0.40, P < .001), and satisfaction with facial appearance (rs = -0.39, P = .0001). Cronbach's alpha and the ICC was 0.95 and 0.90, respectively. The domains of B-OQLQ causing the most effect on the quality of life included "social aspects of deformity" (13.0 ± 10.54) and "facial aesthetics" (11.81 ± 6.23). CONCLUSIONS: The Brazilian version of the OQLQ was shown to be valid and reliable with good psychometric properties and might thus be considered an appropriate tool to assess the effect of dentofacial deformities on the quality of life of individuals with this condition.

Two-phase orthodontic treatment of a complex malocclusion: giving up efficiency in favor of effectiveness, quality of life, and functional rehabilitation?

The interceptive orthodontic treatment of patients with complex dentofacial abnormalities is frequently inefficient and produces less than ideal outcomes. Therefore, postponing therapy to a single-phase surgical-orthodontic approach might be considered a reasonable option. However, other relevant aspects of the patient's quality of life, such as possible psychosocial problems and functional impairments, should also be considered before deciding whether to intercept a severe dentofacial malocclusion while the patient is still growing, or wait and treat later. This case report describes the nonsurgical treatment of a young patient with a severe Class III open-bite malocclusion associated with a cervical cystic lymphangioma. Despite the poor interceptive therapy prognosis, a 2-phase approach was effective. A reflection about giving up efficiency in favor of effectiveness, functional rehabilitation, and the patient's quality of life is included.

Archwire cleaning after intraoral ageing: the effects on debris, roughness, and friction.

Dental material science has paid more attention to mechanical properties of as-received materials than to changes produced after intraoral exposure. Orthodontic archwires when exposed to the intraoral environment have shown a significant increase in the degree of debris, surface roughness (Ra), and frictional force. The purpose of this split-mouth study was to evaluate the effects of two methods of archwire cleaning on these variables after clinical use for 8 weeks. For eight individuals, four sets of three brackets each (n = 32) were bonded from the first molar to the first premolar. A passive segment of 0.019 × 0.025 inch stainless steel (SS) archwire was inserted into the brackets and tied by elastomeric ligature. Debris level [via scanning electron microscopy (SEM)], Ra, and frictional force were evaluated in a paired comparison after 8 weeks of intraoral exposure and after cleaning with a steel wool sponge (SWS) for 1 minute or ultrasound (US) cleaning for 15 minutes. Kruskal-Wallis, Friedman's, and Spearman and Pearson correlation tests were used for statistical analysis. The debris and Ra of SS rectangular wires increased significantly (P < 0.05) during clinical use, causing a significant increase in the frictional force level. These changes can be effectively eliminated by either of the investigated cleaning methods, although a SWS seems to be clinically more practical.

Oral Health Impact Profile (OHIP)-14 telephone interview reliability to assess oral health-related quality of life (OHRQoL) in orthosurgical patients.

BACKGROUND: The influence of the Oral Health Impact Profile (OHIP)-14 administration method through telephone or face-to-face interviews in orthosurgical patients is unknown. The study aims to assess the reliability of the OHIP-14 questionnaire through its stability and internal consistency when applied through a telephone interview compared with a face-to-face interview. METHODS: A total of 21 orthosurgical patients were selected to compare the scores obtained in OHIP-14. The interview was carried out by telephone, and 2 weeks later, the patient was invited to attend a face-to-face interview. Stability was verified by Cohen's kappa coefficient with quadratic weighting for individual items and intraclass correlation coefficient for the total OHIP-14 score. Internal consistency was assessed by Cronbach's alpha coefficient for the total scale and its seven subscales. RESULTS: Items 5 and 6 showed reasonable agreement in the two modes of administration; 4 and 14 moderate; 1, 3, 7, 9, 11, and 13 substantial; and items 2, 8, 10, and 12 showed almost perfect agreement, according to the Cohen's kappa coefficient test. The instrument's internal consistency was better in the face-to-face interview (0.89) than it was in the telephone interview (0.85). For the evaluation of the seven OHIP-14 subscales, differences were found in functional limitations, psychological discomfort, and social disadvantage subscales. CONCLUSIONS: Although there were some differences in OHIP-14 subscales between the interview methods, the total score of the questionnaire showed good stability and internal consistency. The telephone method can be a reliable alternative for the application of the OHIP-14 questionnaire in orthosurgical patients.

Orthodontic Wires: A 12-Year Bibliometric Study.

Aims and Objectives: To perform a bibliometric study to identify and evaluate articles associated with "orthodontic wires" indexed in six databases (PubMed, Embase, Cochrane, Scopus, Lilacs, and Google Scholar) from 2010 to 2022. Materials and Methods: The search strategy in PubMed combined different medical subject heading terms with free-text words and was adjusted for each selected database. The retrieved documents were original English articles containing the keywords used in the search strategies related to orthodontic wires. Collected data consisted of journal name, nationality, field, JIF-2 and JIF-5, SJR, CiteScore, Q and H-index, and categorization of the study. Results: In total, 417 articles were retrieved from the initial search. After the exclusion criteria, 257 articles remained. The most common theme was mechanical properties, with basic studies as the main categorization. Conclusions: This bibliometric survey provides an overview of orthodontic wires publications that might help orthodontists to understand the tendency of the studies on this subject. The retrieved papers were published in 100 journals, including 15 orthodontic journals, mainly in the first and second quartiles. Europe and America were the continents with the highest number of papers. The United States was the country with the highest number of journals on the topic. AJODO presented the highest h-index among the retrieved orthodontic journals. Brazil represented the principal institutions of origin of the listed articles. There was a tendency to increase the number of publications on orthodontic wires over the years. These findings indicate that research on orthodontic wires is still contemporary and relevant.

Is traditional treatment a good option for an adult with a Class II deepbite malocclusion?

The Tweed-Merrifield directional force technique is a useful treatment approach for a patient with a Class II malocclusion with dentoalveolar protrusion. The purpose of this case report was to present the diagnosis and treatment descriptions of a patient with an Angle Class II malocclusion complicated by tooth losses, severe dentoalveolar protrusion, and skeletal discrepancy. Treatment involved extraction of the maxillary first premolars, high-pull headgear to enhance anchorage, and high-pull J-hook headgear to retract and intrude the maxillary anterior segments. A successful outcome was achieved with traditional orthodontic treatment in this borderline surgical case.

In vitro comparison of peracetic acid and autoclave sterilization in the corrosion of orthodontic pliers: a pilot study.

INTRODUCTION: The most currently recommended method for sterilization of orthodontic pliers is the autoclave, while peracetic acid has also been shown to be effective in the chemical sterilization process. OBJECTIVE: This study sought to compare the corrosive effects of peracetic acid and autoclave sterilization process of orthodontic pliers. METHODS: Four active tungsten carbide (WC) stainless steel tie-cutting pliers from the manufacturers Quinelato (Rio Claro, SP, Brazil) and ICE (Cajamar, SP, Brazil) were selected. The active ends of the pliers were sectioned, and six active tips were obtained and distributed into the following groups: 1) control group (no sterilization); 2) AC group (two active pliers tips submitted to 100 autoclave sterilization cycles); and 3) AP group (two active pliers tips submitted to 100 cycles of sterilization by immersion in 2% peracetic acid solution for 30 minutes). RESULTS: Chemical analysis using X-ray dispersive energy spectroscopy showed that after autoclave sterilization, only the ICE pliers presented oxidation corrosion (Δ[O] = +24.5%; Δ[Fe] = +5.8%; Δ[WC] = -1.9%). In comparison, following peracetic acid sterilization, both manufacturers ICE (Δ[O] = +1.8%; Δ[Fe] = +18.0%; Δ[WC] = -1.1%) and Quinelato (Δ[O] = +5.3%; Δ[Fe] = -10.4%; Δ[WC] = -15.2%) showed corrosion. The morphological analysis revealed that peracetic acid caused a pitting and localized corrosion in both brands, while the autoclave caused uniform surface corrosion on the ICE pliers. CONCLUSION: Autoclave application was the sterilization method that generated less corrosive damage to the orthodontic cutting pliers, when compared to the immersion in 2% peracetic acid.

Oral health-related quality of life in orthognathic surgery patients.

INTRODUCTION: In the last decade, an increasing number of studies focusing on the impact of oral deformities and illnesses on quality of life have been published. Our goal was to evaluate the impact of oral problems on quality of life in 3 groups of adult patients in need of orthognathic-surgical treatment. METHODS: A total of 117 patients were recruited from the Clinic of Oral and Maxillofacial Surgery of the State University of Rio de Janeiro in Brazil: 20 in the initial phase, 70 in the presurgical phase (presurgical orthodontic preparation), and 27 in the postsurgical phase. The impact of treatment phase on oral health-related quality of life was evaluated with the oral health impact profile (OHIP-14). OHIP-14 scores were calculated by an additive method, and the participants were divided on the basis of level of impact into 2 groups: high impact (scores, >11) and low impact (scores, < or =11). RESULTS: Compared with patients in the postsurgical phase, those who needed orthognathic surgical treatment but had not yet begun it and those who were in the presurgical phase of treatment were 6.48 and 3.14 times more likely, respectively, to experience a negative impact of their oral condition. CONCLUSIONS: Among those undergoing or anticipating orthognathic-surgical treatment, orthognathic surgery positively affects the patients' quality of life.

Association between hypodontia of permanent maxillary lateral incisors and other dental anomalies.

INTRODUCTION: Tooth agenesis is often associated with other tooth anomalies, such as microdontia, delayed eruption and ectopic eruption. Moreover, they may be found all in the same individual, as certain genetic mutations may have a variable phenotypic expression. Treatment of cases of hypodontia of anterior teeth should not involve only opening or closing space for prosthetic rehabilitation. Individuals with hypodontia of permanent maxillary lateral incisors may have teeth with a mesiodistal width smaller than that of patients with a normal dentition, and which may need reshaping to achieve an esthetic and functional occlusion. OBJECTIVE: This clinical case report discusses the association of hypodontia of permanent maxillary lateral incisors with other tooth anomalies and their treatment alternatives.

Reproducibility of digital indirect bonding technique using three-dimensional (3D) models and 3D-printed transfer trays.

OBJECTIVE: To evaluate the reproducibility of digital tray transfer fit on digital indirect bonding by analyzing the differences in bracket positions. MATERIALS AND METHODS: Digital indirect bonding was performed by positioning brackets on digital models superimposed by tomography using Ortho Analyzer (3Shape) software. Thirty-three orthodontists performed indirect bonding on prototyped models of the same malocclusion using prototyped transfer trays for two types of brackets (MiniSprint Roth and BioQuick self-ligating). The models with brackets were scanned using an intraoral scanner (Trios, 3Shape). Superimpositions were made between the digital models obtained after indirect bonding and those from the original virtual setup. To analyze the differences in bracket positions, three planes were examined for each bracket: vertical, horizontal, and angulation. Three orthodontists repeated indirect bonding after 15 days, and Bland-Altman plots and intraclass correlation coefficients were used to evaluate inter- and intraevaluator reproducibility and reliability, respectively. Repeated-measures analysis of variance (ANOVA) was used to analyze the differences between bracket positions, and multivariate ANOVA was used to evaluate the influence of orthodontists' experience on the results. RESULTS: Differences between bracket positions were not statistically significant, except mesial-distal discrepancies in the BioQuick group (P = .016). However, differences were not clinically significant (horizontal varied from 0.04 to 0.13 mm; angulation, 0.45° to 2.03°). There was no significant influence of orthodontist experience and years of clinical practice on bracket positions (P = .314 and P = .158). The reproducibility among orthodontists was confirmed. CONCLUSIONS: The reproducibility of digital indirect bonding was confirmed in terms of bracket positions using three-dimensional printed transfer trays.

Management of the Vertical Dimension in the Camouflage Treatment of an Adult Skeletal Class III Malocclusion.

Treating skeletal class III malocclusions is one of the biggest challenges in Orthodontics. Given the complexity of these cases, orthognathic surgery is often the best treatment option. However, many patients refuse this treatment due to its risks, morbidity, and costs involved. Alternatively, dental compensation can be planned for some of these skeletal problems. This case report presents a dentoalveolar compensation in the orthodontic treatment of a 20-year-old female patient with class III malocclusion, concave profile, anterior crossbite, mandibular prognathism, maxillary retrusion, and a vertical deficiency in the posterior region. Treatment planning involved a multiloop edgewise archwire (MEAW) associated with intermaxillary elastics with counterclockwise rotation of the occlusal plane in the posterior region of the maxilla aiming at obtaining an increased posterior vertical dimension. After 24 months of treatment, the severe anterior crossbite was corrected, and the skeletal class III relationship was camouflaged. At the end of the orthodontic treatment, it was possible to observe an improved facial profile, a nice smile, and a functional occlusion. The results remained stable at a three-year follow-up. The MEAW, associated with the use of elastics, seems to be an effective treatment option for class III camouflage with reduced posterior vertical dimension with no need for additional anchoring devices but requiring adequate bending of wires and patient compliance.

Bond failure rates with a self-etching primer: a randomized controlled trial.

INTRODUCTION: The purpose of this clinical trial was to evaluate over a 12-month period the performance of a self-etching system (SEP) (Transbond Plus SEP, 3M Unitek, Monrovia, Calif) compared with a conventional multi-step system (TBXT) (Transbond XT, 3M Unitek). METHODS: Twenty-eight randomly selected patients were included in this study. They were randomly assigned to either the TBXT or the SEP group. A total of 548 brackets were bonded according to the manufacturer's instructions with Transbond XT adhesive paste (3M Unitek). The survival rates of brackets were estimated with the Kaplan-Meier analysis. Bracket survival distributions for bonding procedure, tooth location, dental arch, and patient sex were compared with the log-rank test. RESULTS: The failure rates of the TBXT and SEP groups were 4.78% and 6.88%, respectively. No significant differences in the survival rates were observed between the bonding procedures (P = 0.311). When tooth location, dental arch, and sex were analyzed, only tooth location was significant. Posterior brackets were more likely to fail than anterior brackets (P = 0.013). CONCLUSIONS: Both systems had low bond failure rates and are adequate for orthodontic bonding needs.

Immediate orthodontic load on dental implants: an option for adult treatment.

The demand for orthodontic treatment in adults has been increasing. However, these patients often require a multidisciplinary approach, due to the lack of posterior teeth, requiring additional anchorage. The skeletal anchorage by endosseous implants is an option, since they may be used later for prosthetic rehabilitation. The application of immediate load on these appliances for orthodontic movement may reduce the costs and total treatment time. This paper discusses the utilization of endosseous dental implants with immediate load for absolute anchorage for orthodontic movement, with later utilization for prosthetic rehabilitation.

Effect of high-intensity LED units at reduced curing time on in vitro bond strength of orthodontic brackets.

AIM: To compare the shear bond strength of stainless steel brackets obtained by 3 high-intensive light-emitting diode (LED) units with conventional halogen polymerization. METHODS: A standard light-curing adhesive paste was used to bond brackets using different lamps and curing times. Eighty permanent bovine incisors were obtained and randomly divided into 4 groups. The first group was bonded using a high-output halogen lamp for 20 seconds, which served as a positive control. The other 3 groups were bonded with high-intensive LED curing devices for 10 seconds. After 30 minutes, a universal testing machine was used to apply an occlusal shear force directly to the enamel-bracket interface at a speed of 0.5 mm/minute. The groups were compared using Kruskal-Wallis test. RESULTS: Mean results and standard deviations for the groups were: group 1 = 11.22 MPa (1.68), group 2 = 10.35 MPa (1.92), group 3 = 11.19 MPa (2.62), and group 4 = 11.82 MPa (2.09). No significant difference was observed in the bond strengths of the 4 groups evaluated (P = . 176). CONCLUSIONS: Under the conditions of the present study, the high-intensity LED units with reduced light-curing time bonded brackets to etched tooth enamel as well as the halogen-based light-curing units.

Herbst appliance with skeletal anchorage versus dental anchorage in adolescents with Class II malocclusion: study protocol for a randomised controlled trial.

BACKGROUND: The Herbst appliance is an orthodontic appliance that is used for the correction of class II malocclusion with skeletal discrepancies. Research has shown that this is effective. However, a potential harm is excessive protrusion of the lower front teeth. This is associated with gingival recession, loss of tooth support, and root resorption. This trial evaluates a method of reducing this problem. METHODS/DESIGN: The study is a single-center, randomised, assessor-blinded, superiority clinical trial with parallel 1:1 allocation. Male and female young people (10-14 years old) with prominent front teeth (class II, division 1) will be treated in one orthodontic clinic. Group 1 will be treated with the conventional Herbst appliance with dental anchorage and group 2 with the Herbst appliance with indirect skeletal anchorage for 12 months. The primary objective will be to compare the proclination of the lower incisors between the Herbst appliance with dental anchorage and skeletal anchorage. Secondary objectives will be to evaluate the changes occurring between the groups in the mandible, maxilla, lower and upper molars, and in gingival recession and root resorption at the end of the treatment. Additionally, the young patient's experience using the appliances will be assessed. The primary outcome measure will be the amount of lower incisor proclination at the end of treatment. This will be assessed by cone-beam computed tomography (CBCT) superimposition. Secondary outcome measures will be the changes in the mandible, maxilla, lower and upper molars at the end of treatment assessed by tomography superimposition and the young patient's experience using the appliances assessed by self-reported questionnaires and semi-structured interviews. The randomisation method will be blocked randomisation, using software to generate a randomised list. The allocation concealment will be done in opaque envelopes numbered from 1 to 40 containing the treatment modality. The randomisation will be implemented by the secretary of the Department of Orthodontics of Rio de Janeiro State University before the beginning of the study. The patients and the orthodontists who will treat the patients cannot be blinded, as they will know the type of appliance used. The technician who will take the CBCT image and the data analyst will be blinded to patients' group allocation. DISCUSSION: If this new intervention is effective, the findings can change orthodontic practice and may also be relevant to other forms of treatment in which appliances are fixed to the bones of the jaws. However, if the bone anchoring is not effective, the trial will provide much needed information on the use of this comparatively new development. TRIAL REGISTRATION: ClinicalTrials.gov, protocol ID: NCT0241812 . Registered on 26 March 2015.

In vitro comparison of peracetic acid and autoclave sterilization in the corrosion of orthodontic pliers: a pilot study

ABSTRACT Introduction: The most currently recommended method for sterilization of orthodontic pliers is the autoclave, while peracetic acid has also been shown to be effective in the chemical sterilization process. Objective: This study sought to compare the corrosive effects of peracetic acid and autoclave sterilization process of orthodontic pliers. Methods: Four active tungsten carbide (WC) stainless steel tie-cutting pliers from the manufacturers Quinelato (Rio Claro, SP, Brazil) and ICE (Cajamar, SP, Brazil) were selected. The active ends of the pliers were sectioned, and six active tips were obtained and distributed into the following groups: 1) control group (no sterilization); 2) AC group (two active pliers tips submitted to 100 autoclave sterilization cycles); and 3) AP group (two active pliers tips submitted to 100 cycles of sterilization by immersion in 2% peracetic acid solution for 30 minutes). Results: Chemical analysis using X-ray dispersive energy spectroscopy showed that after autoclave sterilization, only the ICE pliers presented oxidation corrosion (Δ[O] = +24.5%; Δ[Fe] = +5.8%; Δ[WC] = -1.9%). In comparison, following peracetic acid sterilization, both manufacturers ICE (Δ[O] = +1.8%; Δ[Fe] = +18.0%; Δ[WC] = -1.1%) and Quinelato (Δ[O] = +5.3%; Δ[Fe] = -10.4%; Δ[WC] = -15.2%) showed corrosion. The morphological analysis revealed that peracetic acid caused a pitting and localized corrosion in both brands, while the autoclave caused uniform surface corrosion on the ICE pliers. Conclusion: Autoclave application was the sterilization method that generated less corrosive damage to the orthodontic cutting pliers, when compared to the immersion in 2% peracetic acid.

RESUMO Introdução: O método mais recomendado para a esterilização dos alicates ortodônticos é a autoclave; porém, o ácido peracético mostrou-se eficaz no processo de esterilização química. Objetivo: O objetivo do presente estudo foi avaliar o efeito corrosivo do ácido peracético e da autoclave no processo de esterilização de alicates ortodônticos. Métodos: Foram selecionados quatro alicates de corte de amarrilho de aço inoxidável, com ponta ativa de carboneto de tungstênio (WC), das marcas Quinelato (Rio Claro/SP, Brasil) e ICE (Cajamar/SP, Brasil), que foram distribuídos em três grupos: 1) Controle (C), o qual não foi submetido à esterilização; 2) Grupo AC, constituído por duas pontas ativas de alicates submetidas a 100 ciclos de esterilização em autoclave; e 3) Grupo AP, formado por duas pontas ativas de alicates submetidas a 100 ciclos de esterilização por imersão em solução de ácido peracético a 2% durante 30 minutos. Resultados: Por meio da análise química (EDS, energia dispersiva de raios X), constatou-se que, após esterilização em autoclave, somente o alicate ICE apresentou corrosão por oxidação (Δ[O] = +24,5%; Δ[Fe] = +5,8% e Δ[WC] = -1,9%), enquanto na esterilização em ácido peracético, ambas as marcas, ICE (Δ[O] = +1,8%; Δ[Fe] = +18,0% e Δ[WC] = -1,1%) e Quinelato (Δ[O] = +5,3%; Δ[Fe] = -10,4% e Δ[WC] = -15,2%), apresentaram corrosão. A análise morfológica demonstrou que o ácido peracético causou uma corrosão localizada em pite em ambas as marcas, enquanto a autoclave ocasionou uma corrosão superficial uniforme no alicate ICE. Conclusão: A autoclave foi o método de esterilização que gerou menor dano corrosivo aos alicates ortodônticos, em comparação à imersão em ácido peracético a 2%.

Association between hypodontia of permanent maxillary lateral incisors and other dental anomalies

ABSTRACT Introduction: Tooth agenesis is often associated with other tooth anomalies, such as microdontia, delayed eruption and ectopic eruption. Moreover, they may be found all in the same individual, as certain genetic mutations may have a variable phenotypic expression. Treatment of cases of hypodontia of anterior teeth should not involve only opening or closing space for prosthetic rehabilitation. Individuals with hypodontia of permanent maxillary lateral incisors may have teeth with a mesiodistal width smaller than that of patients with a normal dentition, and which may need reshaping to achieve an esthetic and functional occlusion. Objective: This clinical case report discusses the association of hypodontia of permanent maxillary lateral incisors with other tooth anomalies and their treatment alternatives.

RESUMO Introdução: As agenesias dentárias são frequentemente associadas a outras anomalias dentárias, tais como microdontia, atraso na erupção e ectopismo. Além disso, podem vir todas juntas em um mesmo indivíduo, pois certas mutações genéticas podem se expressar fenotipicamente de diferentes formas. A abordagem terapêutica nos casos de hipodontia de dentes anteriores não deve se pautar somente entre fechar ou abrir espaço para substituição protética. Portadores de hipodontia de incisivos laterais superiores permanentes podem apresentar os outros dentes com largura mesiodistal menor que os de pacientes com dentição normal, e podem necessitar de reanatomizações para que se obtenha uma oclusão dentária estética e funcional. Objetivo: Dessa forma, o objetivo do presente artigo é relatar um caso clínico e discutir a associação da hipodontia de incisivos laterais superiores permanentes com outras anomalias dentárias, e suas alternativas de tratamento.

Tradução e Adaptação Transcultural de um Questionário Para Avaliação das Percepções de Adolescentes sobre o Tratamento Ortodôntico / Brazilian Version of a Questionnaire Assessing Adolescent's Experiences in Orthodontic Treatment

Os instrumentos de qualidade de vida relacionada à saúde bucal estão sendo usados com crescente frequência em pesquisas. No entanto, esses instrumentos não estão disponíveis em todos os países ou idiomas. A disponibilidade de versões multilíngues de instrumentos, válidas para várias culturas, é importante para a pesquisa epidemiológica. O objetivo deste estudo foi o de traduzir e realizar a adaptação transcultural do questionário desenvolvido por Feldmann em 2007, relativo às percepções de pacientes adolescentes sobre o tratamento ortodôntico, para a língua portuguesa. Inicialmente, a equivalência de conceitos e itens foi discutida por um grupo de especialistas que examinou os itens do questionário. Foram entrevistados quatro adolescentes utilizando a metodologia de grupo focal. O instrumento foi então submetido às seguintes etapas: duas traduções para o português por tradutores independentes, pré-teste dos questionários em 6 pacientes, tradução reversa, revisão por comitê e finalmente um estudo piloto com a versão final. Nessa etapa, foram entrevistados 20 adolescentes com idade entre 12 e 17 anos, de ambos os gêneros, avaliados na Clínica de Ortodontia da Faculdade de Odontologia da Universidade Estadual do Rio de Janeiro. O questionário foi aplicado a dois grupos: adolescentes não tratados e adolescentes em tratamento ortodôntico. A partir dessas avaliações, foi produzida a versão brasileira do questionário de Feldmann, com aplicação e formato apropriados à população alvo. A tradução e adaptação transcultural do questionário para o português foi realizada assegurando sua equivalência semântica e conceitual com o instrumento original e a versão final obteve consistência em estudo piloto.

Introduction: Instruments of quality of life related to oral health are used with increasing frequency in research. However, these instruments are not available in all countries or languages. The availability of multilingual versions of instruments, valid for different cultures, is important for epidemiological research. Objective: To translate and carry out the cross-cultural adaptation of the questionnaire developed by Feldmann in 2007, concerning the perceptions of adolescent patients about orthodontic treatment, into Portuguese. Methods: Initially, the equivalence of concepts and items was discussed by a group of experts who examined the items in the questionnaire. Four adolescents were interviewed using the focus group methodology. The instrument was then submitted to the following steps: two translations into Portuguese by independent translators, pre-testing of the questionnaires in 6 patients, reverse translation, review by committee and finally a pilot study with the final version. In this stage, 20 adolescents aged between 12 and 17 years, of both genders, were interviewed, evaluated at the Orthodontics Clinic of the Faculty of Dentistry of the State University of Rio de Janeiro. The questionnaire was applied to two groups: untreated adolescents and adolescents undergoing orthodontic treatment. Results: From these evaluations, the Brazilian version of the Feldmann questionnaire was produced, with administration and format appropriate to the target population. Conclusions: The translation and cross-cultural adaptation of the questionnaire into Portuguese was performed ensuring its semantic and conceptual equivalence with the original instrument and the final version was consistent in a pilot study