Digital repair for a patient with limited mouth opening: a case report and literature review / 口腔疾病防治

Objective@#To explore an accurate method to obtain an intraoral model of patients with specific limited mouth opening (microstomia) due to systemic scleroderma.@*Methods@#This study followed medical ethics, and informed consent has been obtained from patients. A case of Ken's Type I mandibular dentition defect scleroderma with limited mouth opening was addressed with digital technology as the leading method combined with the traditional impression method of segmental impression. Individual trays were made based on the patient's left and right mandibular dentition, and segmented molds were obtained. Simultaneously, intraoral scanning was performed to obtain the morphological data of both the soft and hard tissues of the upper and lower mandibles. After each part of the model was obtained, the mandibular model was scanned and digitally aligned to form the final denture model, and the final removable partial denture was designed and made by computer aided design/computer aided manufacturing (CAD/CAM) technology. At the same time, combined with the literature, the diagnosis and treatment of removable partial denture in patients with limited mouth opening were retrospectively analyzed.@*Results@#The denture was well retained and achieved a good repair effect. The patients expressed satisfaction with the mastication efficiency and other functions of the denture. The findings of the literature review show that the integration of digital technology with the traditional impression method, along with computer fitting, can accurately obtain the patient's oral model and facilitate successful follow-up repairs. However, when the anterior mandibular dentition of the patient is absent, the margin of error is increased in this procedure, which deserves further exploration.@*Conclusion@#Utilizing digital technology as the leading method, combined with the traditional impression method of segmental impression, for the repair of dental defects in patients with limited mouth opening, has proven to be effective. Thus, patients report a positive medical experience with high satisfaction, indicating that this approach is worthy of clinical promotion.

Esclerodermia. Manifestaciones bucomaxilofaciales, prevención y atención odontológica. Revisión narrativa / Scleroderma. Oral and maxillofacial manifestations, prevention and dental care. Narrative review

Resumen La esclerodermia pertenece a un grupo de enfermedades autoinmunes del tejido conectivo que produce inflamación, disfunción vascular y fibrosis excesiva del tejido de soporte de la piel y los órganos viscerales. A nivel bucal se presentan afecciones como la xerostomía y la microstomía, así como caries y enfermedad periodontal por dificultades en el control de la placa bacteriana. Su tratamiento odontológico requiere un manejo integral, que comprenda las patologías bucales presentes y los síntomas permanentes característicos de la enfermedad. Si bien es una patología muy infrecuente en la práctica general, es necesario enfatizar la importancia de que el odontólogo cumpla un rol multidisciplinario en el tratamiento de estos pacientes. Esta revisión narrativa tiene por objetivo describir las manifestaciones bucomaxilofaciales y el manejo odontológico del paciente con esclerodermia.

Abstract Scleroderma belongs to a group of autoimmune connective tissue diseases that causes inflammation, vascular dysfunction and excessive fibrosis of the supporting skin tissue and visceral organs. In the mouth, conditions such as xerostomia and microstomy are evident, as well as caries and periodontal disease due to difficulty in bacterial plaque control. Its dental treatment requires an integral management, which includes the oral pathologies present and the characteristic permanent symptoms of the disease. Although this pathology is not very common in the general practice, it is necessary to emphasize the importance of the dentist playing a multidisciplinary role in the treatment of these patients. This narrative review aims to describe the oral and maxillofacial manifestations and the dental management of patients with scleroderma.

Manifestações bucais em portadores de epidermólise bolhosa residentes em um município baiano / Oral manifestations of epidermolysis bullosa in a municipality of the state of Bahia

Introdução: a Epidermólise Bolhosa hereditária (EB) é uma doença rara, caracterizada por formações de bolhas na pele e nas mucosas que sofrem mínimos traumas ou aparecem espontaneamente. As principais divisões de EB são Epidermólise Bolhosa Simples, Epidermólise Bolhosa Juncional, Epidermólise Bolhosa Distrófica e a Síndrome de Kindler. As manifestações bucais geralmente encontradas nos pacientes com EB são as bolhas no epitélio oral, microstomia, anquiloglossia, doença periondontal, hipoplasia do esmalte, cárie dentária, atrofia da maxila e prognatismo mandibular, variando para cada tipo da doença. Objetivo: relatar as manifestações bucais dos portadores de Epidermólise Bolhosa residentes no município de Barra da Estiva. Metodologia: trata-se de um estudo transversal, quantitativo e descritivo que foi desenvolvido no município de Barra da Estiva ­ BA com a população de portadores de Epidermólise Bolhosa, através da realização de anamnese e exame clínico. Estatística descritiva foi utilizada para tabular os dados coletados. Resultados: foram analisados 5 portadores de Epidermólise Bolhosa, a maioria do sexo masculino (60%), com média de idade de 5,6 anos. As manifestações bucais encontradas foram bolhas orais (100%), anquiloglossia (100%), língua despapilada (100%), hipoplasia de esmalte (80%), cárie (40%) e abertura de boca limitada em média de 28,6 mm. Conclusão: os portadores de Epidermólise Bolhosa apresentaram manifestações orais características da doença, tendo como consequências maiores dificuldades para realizar higienização bucal e tratamento odontológico, sendo necessário conhecimento prévio dos cirurgiões-dentistas para o atendimento desses pacientes.

Introduction: inherited Epidermolysis Bullosa (EB) is a rare disease, characterized by blistering of the skin and mucous membranes that suffer minimal trauma or appear spontaneously. The main divisions of EB are Simple Epidermolysis Bullosa, Junctional Epidermolysis Bullosa, Dystrophic Epidermolysis Bullosa and Kindler Syndrome. The oral manifestations usually found in patients with EB are blisters in the oral epithelium, microstomy, ankyloglossia, periodontal disease, enamel hypoplasia, dental caries, atrophy of the jaw and mandibular prognathism, varying for each type of disease. Objective: to report the oral manifestations of Epidermolysis Bullosa patients living in the municipality of Barra da Estiva. Methods: cross-sectional study, quantitative and descriptive that was developed in the municipality of Barra da Estiva-BA with the population of people with Epidermolysis Bullosa, through anamnesis and clinical examination. Descriptive statistics was used to tabulate the data collected. Results: 5 children with Epidermolysis Bullosa were analyzed, most male (60%), with an average age of 5,6 years. Oral manifestations found were oral blisters (100%), anquiloglossia (100%), loss of papillae of the tongue (100%), enamel hypoplasia (80%), tooth decay (40%) and mouth opening limited to the average of 28.6 mm. Conclusion: epidermolysis Bullosa children presented oral manifestations common to the disease, leading to difficulties in performing oral hygiene and dental treatment, requiring prior knowledge of dental surgeons for the care of these patients.

Comparison of clinical effects of the Yu flap and the Karapandzic flap in repairing greater than 2/3 lower lip defects / 口腔疾病防治

Objective@#To compare the clinical effect of the Yu flap and the Karapandzic flap in repairing greater than 2/3 defects of the lower lip and to provide a reference for clinical application.@*Methods@#Ten patients with greater than 2/3 lower lip defects after surgical resection of lower lip tumors and vascular malformations were enrolled: 5 patients were repaired with the Yu flap (Yu flap group) and 5 patients were repaired with the Karapandzic flap (Karapandzic flap group). Follow-up for at least 1 year was conducted to evaluate the morphology (symmetry, stoma, exposure of vermilion) and function (sensory function, motor function) of the reconstructed lower lip.@*Results @#All the flaps survived, and all wounds showed primary healing. The lower lips reconstructed with the Yu flap or the Karapandzic flap obtained similar satisfactory oral function. The sensory function was essentially restored. There were no obvious obstacles in speech and expression, and no saliva leakage occurred. In the Yu flap group, only 1 patient had slight microstomia. In the Karapandzic flap group, 2 patients had slight microstomia and 3 patients had moderate microstomia. 90% (9/10) of the patients were very satisfied with the postoperative outcome, and 1 patient in the Karapandzic flap group was basically satisfied. @*Conclusion@#Both the Yu flap and the Karapandzic flap can be used to repair greater than 2/3 lower lip defects and reliable outcomes can be achieved. These two methods can achieve similar oral functions, but the effect of the Karapandzic flap is inferior to that of the Yu flap in terms of aesthetic appearance, and microstomia often occurs, while the Yu flap can generally maintain the original size of the mouth cleft.

O papel do uso de tecnologias combinadas na abordagem de uma paciente com microstomia / The role of the use of combined technologies in the approach to a patient with microstomia

A microstomia ocorre em 70% dos pacientes com esclerose sistêmica e há poucas opções terapêuticas. Descrevemos caso de mulher de 39 anos com diagnóstico de esclerose sistêmica em 2010, em uso de micofenolato de mofetil e rituximabe, apresentando microstomia. Foram realizadas duas sessões de luz intensa pulsada e sete sessões de laser fracionado ablativo Erbium:YAG de 2940nm, com resposta clínica importante. A formação e reorganização de fibras colágenas e elásticas foram responsáveis pela melhora da microstomia. Há poucos estudos com o uso de tecnologias para a abordagem da microstomia. Este é o primeiro com Er:YAG 2940nm para esta finalidade

Facial surgeries are often challenging for surgeons due to their complex anatomy, aesthetic and functional importance. Interventions in the cosmetic subunit that comprises the eyebrows can be particularly difficult. This case report aims to demonstrate the use of island flap in this region. We performed the excision of melanocytic nevus, with a good outcome and absence of postoperative complications. This technique is commonly used for facial reconstruction; however, the literature describes only a few cases using this method for eyebrow reconstruction.

Application of digital technology in the restoration of partial edentulous dentition with microstomia / 口腔疾病防治

Objective@# To explore the application of digital technology in the restoration of partial edentulous patients with microstomia. @*Methods@# A patient with microstomia was presented and seeking for the restoration of her full edentulous in the upper jaw and partial edentulous in the lower jaw (Kennedy Ⅲ). A digital intraoral scanning was used to obtain digital impressions of soft and hard tissues in the oral cavity. Computer aided design and 3D printing technology were used to design and fabricate the metal framework. @* Results @#The patient had no difficulty to wear or take off the dentures. The maxillary and mandibular dentures showed good retention, stability, mastication function and articulation. There was no tenderness in the one week and one month′s follow-up. And the chewing efficiency was satisfactory@*Conclusion@#This case report successfully designed and fabricated mandibular removable partial dentures for patients with microstomia through intraoral scanning and 3D printing technology. Thus, this work provides a new method and idea for treating partial edentulous dentition with microstomia

Microstomia: Aplicação da fotogrametria para mensurar a eficiência da órtese oral associada à terapia fonoaudiológica / Microstomy: Application of photogrammetry to measure the efficiency of oral orthosis associated with speech therapy

OBJETIVO: Esse estudo teve como propósito verificar, por meio da fotogrametria computadorizada, a eficácia do uso da órtese oral como auxiliar na terapia fonoaudiológica. MÉTODO: Após a documentação fotográfica, cada paciente foi submetido a terapia fonoaudiológica, por meio da terapia miofuncional orofacial, associada ao uso da órtese oral, confeccionada segundo Borges et al. (2011). Ao término do tratamento, foi realizado novo registro fotográfico, em seguida, a mensuração da dimensão vertical (distância entre lábio superior/inferior) e horizontal (distância entre comissuras direita/esquerda), com o uso do programa Corel Draw X3. RESULTADOS: As médias da abertura bucal aumentaram da avaliação inicial para a avaliação final, tendo aumentado 5,1 mm no sentido horizontal (67,3 mm para 72,4 mm) e 13,9 mm no sentido vertical (de 32,7 mm para 46,6 mm). Essas diferenças se revelam significativas para as avaliações (p <0,05). CONCLUSÃO: O uso da órtese oral associado a terapia fonoaudiológica demonstrou ser eficaz como mais um instrumento na prevenção da microstomia.

OBJECTIVES: The aim of this study was to through computerized photogrammetry, the efficacy of oral orthosis as an aid in speech therapy. METHODS: After the photographic documentation, each patient underwent speech therapy, through orofacial myofunctional therapy, associated with the use of an oral orthosis, made according to Borges et al. (2011). At the end of the treatment, a new photographic record was taken, then the vertical dimension measurement (distance between upper lip) and horizontal (distance between corners right/left), using the program Corel Draw X3. RESULTS: The mean mouth opening increased from the initial evaluation to the final evaluation, increasing 5.1 mm in the horizontal direction (67.3 mm to 72.4 mm) and 13.9 mm in the vertical direction (from 32.7 mm to 46.6 mm). These differences are significant for the evaluations (p<0.05). CONCLUSION: The use of oral orthosis associated with speech therapy proved to be effective as another tool in the prevention of microstomia.

Consideraciones bucales en el tratamiento de pacientes con esclerodermia: reporte de dos casos / Bucal considerations in the treatment of patients with scleroderma: Report of two cases

La esclerodermia pertenece a un grupo de enfermedades autoinmunes del tejido conectivo, que produce: inflamación, disfunción vascular y fibrosis excesiva del tejido conectivo de soporte de la piel y los órganos viscerales. A nivel bucal se evidencian afecciones como xerostomía, microstomía, caries y enfermedad periodontal. El tratamiento odontológico requiere un manejo integral por parte de los profesionales, que comprenda las patologías orales presentes y los síntomas permanentes característicos de la enfermedad sistémica de base. El objetivo de este artículo es presentar dos casos de esclerodermia resaltando sus manifestaciones orales presentes.

Scleroderma belongs to a group of autoimmune connective tissue diseases that causes inflammation, vascular dysfunction and excessive fibrosis of the connective tissue supporting the skin and visceral organs. A level oral conditions such as xerostomia, microstomia, caries and periodontal disease are evident. Dental treatment requires a comprehensive management by professionals who understand oral pathologies and permanent characteristic symptoms of systemic disease. The aim of this paper is to present two cases of scleroderma highlighting present oral manifestations.

A technique utilising cobalt-chromium framework as a key in master cast preparation for removable prosthesis in microstomia patients: A case report

Prosthodontic rehabilitation and management of microstomia patient presents challenges at all stages during prosthesis fabrication; from making primary impressions to the prostheses insertion. These patients have reduced mouth opening, and hence it can be extremely challenging to make impressions and to fabricate dentures using the conventional methods. The present case report describes prosthodontic management of a partially dentate patient with microstomia that developed secondary to surgical resection and radiation therapy of head and neck cancer. A simplified novel approach has been advocated using the patient’s existing metal removable partial denture as a key in master cast preparation.

Transoral Cross-Lip (Abbé-Estlander) Flap as a Viable and Effective Reconstructive Option in Middle Lower Lip Defect Reconstruction

The Abbé-Estlander flap surgery is a cross-lip procedure that is valuable in repairing a defect on the lower lip using a full-thickness flap, consisting of the skin, muscle and mucosa, from the upper lip. As usefulness and practicality of the flap in reconstruction of lower lip surgical defects in Asian ethnicity have not been documented, the authors present a case of successful lower lip reconstruction with a staged, Abbé-Estlander lip switching flap with commissuroplasty as an illustrative example. A 71-year-old male has presented with an ulcerating lip nodule in the middle one third of the lower lip, measuring about 1.5×2 cm across its long and short axes. Wide excision of the tumor was followed by delineation of the triangular Abbé-Estlander flap from the upper lip, in which the medial hinge point of the base was chosen as the pedicle. Then, the flap elevation was carried out from the lateral commissure and then was transferred into the lower lip defect. Three weeks later, commissuroplasty was performed to correct the rounding at the new commissure. The patient is currently performing his daily activities with no apparent compromise in orbicularis oris strength or oral continence. Given the size of the primary defect and the flap-to-defect ratio of size, the degree of microstomia was acceptable. Even with other myriad of reconstructive options at surgeons' disposal, the Abbé-Estlander lip-switching flap is a reliable, and less morbid method of lower lip reconstruction for Asian surgical candidates. The authors illustrate an exemplary case in which a relatively large lower lip defect was successfully repaired using an upper lip flap of a significantly smaller size in an Asian subject of advanced age, without any remarkable long term sequelae which have traditionally been associated with the trans-oral lip switching flap technique.

Dental management of patients with microstomia: a review of the literature and update on the treatment / Manejo clínico odontológico del paciente con microstomia: una revisión de la literatura y puesta al día

Difficulty in dental management is one of the factors that characterize the patient that requires special care in dentistry. One of the clinical conditions that make dental treatment particularly complex is microstomia. Microstomia is defined as a small and insufficient oral aperture that will hinder diagnosis and dental treatment. Although there have been reports of patients with diseases and syndromes that cause microstomia, the available literature offers only a limited number of reviews on this topic. The aim of this paper is to present a review of the etiology, clinical characteristics, diagnosis and treatment of microstomia. In addition, to describe the therapeutic adaptations to be applied in dental procedures in patients with microstomia, emphasizing the importance of a preventive approach in this group of patients...

La dificultad en el manejo odontológico es uno de los factores que definen al paciente que requiere cuidados especiales en odontología. Una de las situaciones clínicas que más dificulta el tratamiento dental es la microstomia. La microstomia se define como una apertura bucal pequeña e insuficiente que va a dificultar el diagnóstico y el tratamiento bucodental. Aunque se han descrito casos clínicos de pacientes con enfermedades y síndromes que cursan con microstomia, no hay muchas revisiones del tema en la literatura. El objetivo de este artículo es presentar una revisión sobre la etiología, la clínica, el diagnóstico y el tratamiento de la microstomia. Así como, describir las adaptaciones terapéuticas que se deben aplicar en los procedimientos dentales en el paciente con microstomia, recalcando la importancia de un enfoque preventivo en este grupo de pacientes...

Small-caliber artificial blood vessels:problems and prospects / 中国组织工程研究

BACKGROUND:Long-term patency rate of smal-caliber artificial blood vessels is stil the most important issue to be solved. OBJECTIVE:To review the materials and fabrication technologies of smal-caliber artificial blood vessels as wel as endothelialization of smal-caliber artificial blood vessels. METHODS:A computer-based search of PubMed (2000-2013) and Wanfang database (2003-2013) was done for relevant articles using the key words of“smal-caliber, vascular graft, electrospun, layer-by-layer assembly, endothelialization”in English and Chinese, respectively. A total of 125 articles were retrieved, and final y, 41 were included for further analysis. RESULTS AND CONCLUSION:At present, smal-caliber vascular graft materials include natural biological materials, biodegradable polymers, composite materials and xenogeneic biomaterials. Preparation technologies of smal-caliber artificial blood vessels mainly include electrospinning, self-assembly, rapid prototyping, and gel spinning. Numerous methods can elicit endothelialization of smal-caliber artificial blood vessels, but each method has its flaws and cannot ensure long-term patency radical y. With the development and diversification of preparation technologies and in-depth study of endothelialization of vascular prostheses, the long-term patency of smal-caliber artificial blood vessels wil gradual y be resolved.

Colgajo interóseo posterior a distancia para la reconstrucción del labio superior / Remote posterior interosseous flap for reconstruction of upper lip

Las cicatrices post-quemaduras de labio superior, originadas en quemaduras de espesor parcial profundo suelen provocar importantes secuelas estéticas y funcionales al perder la elasticidad y complacencia de la piel sana por placas cicatrizales rígidas e hipertróficas. Estas secuelas, de por si, suelen provocar la limitación de la apertura bucal. La condición fundamental para la reparación de esta secuela consiste en devolver la elasticidad normal al área cicatrizal. Por eso para la cobertura de áreas funcionales y móviles es ideal el aporte de piel sana mediante la realización de colgajos que permitan lograr un buen resultado funcional y aceptable aspecto lo estético. En el caso del labio superior la presencia de pelo, en el varón permite un rudimentario bigote, que permitiría ocultar al paciente otras cicatrices y/o asimetrías del área. Las posibilidades existentes para reemplazar la unidad completa de labio superior aportando pelo para el bigote no son tantas especialmente en el paciente com secuelas de quemadura peribucal. El colgajo de cuero cabelludo resulta muy grueso con alta densidad pilosa y rígido para la movilidad fina que requiere el labio superior, resultando en un pobre resultado estético y funcional. Se presenta el caso de un paciente con una microstomía severa cuya reparación, además de la comisuroplastía, se realizó con un colgajo interóseo posterior a distancia, como novedad, aportando buena elasticidad y naturalidad en la densidad pilosa.

The post-burn scars upper lip, originated in deep partial thickness burns usually cause significant aesthetic and functional sequelae to lose elasticity and healthy skin complacency by rigid plates and hypertrophic scarring. These consequences, in itself, often cause the limitation of mouth opening. The fundamental condition for the repair of this sequel is to restore normal elasticity scar area. So for functional area coverage and mobile is ideal healthy skin input by conducting flaps to achieve an acceptable good functional and aesthetic aspect. In case the presence of the upper lip hair in the male enables a crude mustache, which would hide the patient other scars and / or asymmetries in the area. The options available to replace the complete unit providing upper lip hair for the mustache are not many especially in patients with perioral burn sequelae. The scalp flap is very thick and densely hairy mobility rigid for the thin upper lip required, resulting in a poor aesthetic and functional result. We report the case of a patient with a severe microstomia whose repair work and the commissuroplasty, was performed with a posterior interosseous flap remote, as new, providing good elasticity and natural in hair density.

Prosthetic rehabilitation of patients with microstomia.

Microstomia is defined as an abnormally small oral orifice which can be due to various factors. Microstomia is a definite prosthodontic hindrance to carry out the different treatment successfully. To rehabilitate a patient with microstomia, successfully, the methods and designs incorporated in the prosthesis have to be modified. In the past, various techniques have been tried, incorporating certain biological and scientific methods to rehabilitate patients with microstomia. This article reviews the previously described treatment modalities in case of patients with microstomia.

Custom sectional impression trays with interlocking type handle for microstomia patients.

Making impressions in microstomia patients is often cumbersome. A modification of standard impression procedure is often necessary while treating such patients. This article describes the fabrication of a custom sectional impression tray with interlocking type of a handle for definitive impression procedures in a microstomia patient.

Tratamento de microstomia grave: relato de caso / Treatment of severe microstomia: case report

O tratamento da microstomia é frequentemente um desafio no dia-a-dia do tratamento das sequelas de queimaduras. De maneira geral, as técnicas utilizadas são complexas, com resultados muitas vezes insatisfatórios e com alta taxa de recidiva. O presente trabalho teve como objetivo apresentar um caso grave de microstomia em uma criança de 2 anos, que teve sua resolução alcançada de forma simples, prática e econômica em contrapartida aos métodos tradicionais que muitas vezes são caros, complexos e pouco práticos.

The microstomia treatment is still a challenge in the day by day of the burn sequelae treatment. Usually, the techniques are complex, with poor results and high incidence of recurrence. This study presents a severe case of microstomia in a 2 years old child. The solution was simple, and cheap, in comparison to the traditional surgical methods, usually expensive, complex and low acessibility in a small Center.

Comisuroplastia en un caso de microstomía debida a quemadura bucal / Comisuroplasty in a patient with microstomia caused by oral burn

Se describe el caso de una mujer de 63 años con microstomía ocasionada por la ingesta accidental en la infancia de una sustancia química. La poca apertura oral que le imposibilitaba sonreír además de impedirle el acceso a los procedimientos odontológicos, alteraba su calidad de vida. Es remitida al Servicio de Cirugía Plástica donde se le reseca la brida cicatrizal con ®W¼-plastia, comisuroplastia bilateral y como se logra ampliar su orificio oral de 2.5 a 4.8 cm, se resuelven los síntomas principales con mejoría del factor social y de la calidad de vida.

A case of a 63 year old woman with microstomia caused by accidental swallowing of a chemical substance when she was a child is presented. The small mouth opening didn´t let her smile or receive dental services and decreased her life quality. She is remitted to Plastic Surgery Service, where an excision of scar contracture with W-plasty and bilateral commisuroplasty were made, improving oral opening from 2.5 to 4.8 cm and providing a better social environment and life quality.

Correction of microstomia by bilateral commissuroplasty using "over and out" buccal mucosa flaps: report of a case

Reconstruction of the corners of the mouth in burn-induced microstomia: A case report