[The absence of functional dentition is associated with the lack of commitment to oral functions among Brazilian adults]. / A falta de dentição funcional está associada ao comprometimento das funções bucais entre adultos brasileiros.

The scope of this study was to identify if the absence of functional dentition (FD) is associated with a lack of commitment to oral functions/daily activities among Brazilian adults. For this purpose, data from the National Survey of Oral Health (referred to as SB Brasil 2010) was used. FD was evaluated by the criterion proposed by the WHO (at least 20 teeth in the mouth). The Oral Impacts on Daily Performance (OIDP) questionnaire was used to evaluate daily activities/oral functions. Descriptive, bivariate (chi-squared) and multiple (logistic regression) analysis was conducted, and the odds ratio estimated with a 95% confidence interval (OR/CI95%). The research evaluated 9,564 adults, of which 2,200 adults (20.5%) were considered to have poor FD, and at least one of the daily activities/oral functions evaluated had an impact among 55% of adults. The lack of FD between adults was associated (p ≤ 0.05) with the impact on speech (1.88/1.33-2.64) and being ashamed to smile or talk (1.35/1.00-1.83). A considerable prevalence of lack of FD was identified, this absence being associated with the lack of commitment to the daily activities/oral functions. Dental rehabilitation of patients with a lack of FD should consider the restoration of these lost oral functions (speech and being ashamed to smile or talk).

Objetivou-se identificar se a falta de dentição funcional (DF) está associada com o comprometimento das funções bucais/atividades diárias entre adultos brasileiros. Para isto, foram utilizados dados da Pesquisa Nacional de Saúde Bucal - SB Brasil 2010. A DF foi avaliada pelo critério proposto pela Organização Mundial de Saúde (pelo menos 20 dentes na boca). O instrumento Impactos Odontológicos nos Desempenhos Diários (IODD) foi utilizado para avaliar as atividades diárias/funções bucais. Análises descritivas, bivariadas (Qui-quadrado) e múltiplas (Regressão Logística) foram realizadas, sendo estimado o odds ratio e o intervalo de confiança 95% (OR/IC95%). Foram incluídos e avaliados 9564 adultos. Foram considerados sem DF 2200 adultos (20,5%). Tiveram impacto em pelo menos uma das atividades diárias/funções bucais avaliadas, 55,0% dos adultos. A falta de DF entre adultos foi associada (p ≤ 0,05) com o impacto na fala (1,88/1,33-2,64) e vergonha ao sorrir ou falar (1,35/1,00-1,83). Uma prevalência considerável de falta de DF foi identificada, esta ausência foi associada às atividades diárias/funções bucais (fala e vergonha ao sorrir e falar). A reabilitação dentária de pacientes sem DF deve considerar a devolução destas funções bucais perdidas (fala e vergonha ao sorrir ou falar).

A falta de dentição funcional está associada ao comprometimento das funções bucais entre adultos brasileiros / The absence of functional dentition is associated with the lack of commitment to oral functions among Brazilian adults

Resumo Objetivou-se identificar se a falta de dentição funcional (DF) está associada com o comprometimento das funções bucais/atividades diárias entre adultos brasileiros. Para isto, foram utilizados dados da Pesquisa Nacional de Saúde Bucal - SB Brasil 2010. A DF foi avaliada pelo critério proposto pela Organização Mundial de Saúde (pelo menos 20 dentes na boca). O instrumento Impactos Odontológicos nos Desempenhos Diários (IODD) foi utilizado para avaliar as atividades diárias/funções bucais. Análises descritivas, bivariadas (Qui-quadrado) e múltiplas (Regressão Logística) foram realizadas, sendo estimado o odds ratio e o intervalo de confiança 95% (OR/IC95%). Foram incluídos e avaliados 9564 adultos. Foram considerados sem DF 2200 adultos (20,5%). Tiveram impacto em pelo menos uma das atividades diárias/funções bucais avaliadas, 55,0% dos adultos. A falta de DF entre adultos foi associada (p ≤ 0,05) com o impacto na fala (1,88/1,33-2,64) e vergonha ao sorrir ou falar (1,35/1,00-1,83). Uma prevalência considerável de falta de DF foi identificada, esta ausência foi associada às atividades diárias/funções bucais (fala e vergonha ao sorrir e falar). A reabilitação dentária de pacientes sem DF deve considerar a devolução destas funções bucais perdidas (fala e vergonha ao sorrir ou falar).

Abstract The scope of this study was to identify if the absence of functional dentition (FD) is associated with a lack of commitment to oral functions/daily activities among Brazilian adults. For this purpose, data from the National Survey of Oral Health (referred to as SB Brasil 2010) was used. FD was evaluated by the criterion proposed by the WHO (at least 20 teeth in the mouth). The Oral Impacts on Daily Performance (OIDP) questionnaire was used to evaluate daily activities/oral functions. Descriptive, bivariate (chi-squared) and multiple (logistic regression) analysis was conducted, and the odds ratio estimated with a 95% confidence interval (OR/CI95%). The research evaluated 9,564 adults, of which 2,200 adults (20.5%) were considered to have poor FD, and at least one of the daily activities/oral functions evaluated had an impact among 55% of adults. The lack of FD between adults was associated (p ≤ 0.05) with the impact on speech (1.88/1.33-2.64) and being ashamed to smile or talk (1.35/1.00-1.83). A considerable prevalence of lack of FD was identified, this absence being associated with the lack of commitment to the daily activities/oral functions. Dental rehabilitation of patients with a lack of FD should consider the restoration of these lost oral functions (speech and being ashamed to smile or talk).

Técnica alternativa y simple de rehabilitación oral con prótesis removible para una paciente con epidermolisis bullosa distrófica: reporte de caso clínico / Aternative and simple oral rehabilitation technique using a removable prosthesis for a patient with epidermolysis bullosa dystrophica: a case report

La epidermolisis bullosa es una enfermedad de origen genético caracterizada por una marcada fragilidad de la piel y las mucosas, resultando en la aparición de lesiones vesiculobullosas y/o desprendimientos tisulares de aparición espontánea o, más comúnmente, como consecuencia de roce mecánico. La formación de cicatrices con retracción tisular genera a nivel oral obliteración vestibular, anquiloglosia y microstomía, complicándose la rehabilitación odontológica y, en particular, la protésica. El presente artículo describe una alternativa protésica, simple y económica, para una paciente desdentada parcial con epidermolisis bullosa distrófica recesiva.

Epidermolysis bullosa is a rare genetic disease that is characterised by the formation of blisters and erosions on the skin and mucous membranes following minor traction or trauma. Oral manifestations of the disease include obliteration of the vestibule, ankyloglossia, and microstomia. Oral rehabilitation, and prosthetic rehabilitation, in particular, is a challenge. This article describes a simple, inexpensive prosthetic alternative for a partially edentulous patient with recessive dystrophic epidermolysis bullosa.

Five-year results of a prospective randomised controlled clinical trial of posterior computer-aided design-computer-aided manufacturing ZrSiO4 -ceramic crowns.

The aim of this prospective randomised controlled clinical trial was to evaluate the clinical outcome of shrinkage-free ZrSiO4 -ceramic full-coverage crowns on premolars and molars in comparison with conventional gold crowns over a 5-year period. Two hundred and twenty-three patients were included and randomly divided into two treatment groups. One hundred and twenty-three patients were restored with 123 ZrSiO4 -ceramic crowns, and 100 patients received 100 gold crowns, which served as the control. All crowns were conventionally cemented with glass-ionomer cement. After an observation period of 6, 12, 24, 36, 48 and 60 months, the survival probability (Kaplan-Meier) for the shrinkage-free ZrSiO4 -ceramic crowns was 98·3%, 92·0%, 84·7%, 79% and 73·2% and for the gold crowns, 99%, 97·9%, 95·7%, 94·6% and 92·3%, respectively. The difference between the test and control group was statistically significant (P = 0·0027). The gold crowns showed a better marginal integrity with less marginal discoloration than the ceramic crowns. The most common failure in the ceramic crown group was fracture of the crown. The 60-month results of this prospective randomised controlled clinical trial suggest that the use of these shrinkage-free ZrSiO4 -ceramic crowns in posterior tooth restorations cannot be recommended.

Occlusion on implants - is there a problem?

Oral rehabilitation restores form and function and impacts on general health. Teeth provide a discriminating sense of touch and directional specificity for occlusal perception, management of food with mastication and swallowing, and awareness of its texture and hardness. Peripheral feedback for control of jaw muscles includes the enamel-dentine-pulp complex and mechanoreceptors in the periodontal tissues. The implications of feedback from periodontal and other intra-oral mechanoreceptors as well as changes in central representation are significant for function and adaptation to oral rehabilitation. With implants, in the absence of the periodontium and periodontal mechanoreceptor feedback, fine motor control of mastication is reduced, but patients are still able to function adequately. Further, there is no significant difference in function with full-arch fixed prostheses on teeth in comparison with implants. Predictable implant outcomes depend on bone support. Optimum restoration design appears to be significant for bone remodelling and bone strains around implants with occlusal loading. Finite element analysis data confirmed load concentrations at the coronal bone around the upper section of the implant where bone loss is commonly observed clinically. Load concentration increased with steeper cusp inclination and broader occlusal table and decreased with central fossa loading and narrower occlusal table size. It is recommended that occlusal design should follow a narrow occlusal table, with central fossa loading in intercuspal contact and low cusp inclination to minimise lateral loading in function and parafunction. Acknowledging these features should address potential problems associated with the occlusion in implant therapy.

Rehabilitation of occlusion - science or art?

The primary objective of rehabilitating occlusion is to improve stomatognathic function in patients experiencing dysfunction in mastication, speech, and swallowing as a consequence of tooth loss. The procedure of occlusal treatment involves improving the morphology and the stomatognathic function. Several practical methods and morphological endpoints have been described in occlusal rehabilitation. We made a selection of these (mandibular position, occlusal plane, occlusal guidance, occlusal contact, face-bow transfer, use of an adjustable articulator and occlusal support) and performed a literature review to verify the existence of compelling scientific evidence for each of these. A literature search was conducted using Medline/PubMed in March 2011. Over 400 abstracts were reviewed, and more than 50 manuscripts selected. An additional hand search was also conducted. Of the many studies investigating stomatognathic function in relation to specific occlusal schemes, most studies were poorly designed and of low quality, thus yielding ambiguous results. Overall, there is no scientific evidence that supports any specific occlusal scheme being superior to others in terms of improving stomatognathic function, nor that sophisticated methods are superior to simpler ones in terms of clinical outcomes. However, it is obvious that the art of occlusal rehabilitation requires accurate, reproducible, easy and quick procedures to reduce unnecessary technical failures and/or the requirement for compensatory adjustments. Therefore, despite the lack of scientific evidence for specific treatments, the acquisition of these general skills by dentists and attaining profound knowledge and skills in postgraduate training will be necessary for specialists in charge of complicated cases.

[System of therapy and prophylaxis of hard tooth tissues pathology in the group of pilots].

Survey of 77 males aged 22 to 55 including 43 pilots (main group), 24 non-flying employees (comparison group) and 10 essentially healthy men with sanitized oral cavity (control group) revealed caries in 100% members of groups 1 and 2. Prevalence of other than caries pathologies was higher in the group of pilots. Analysis of mixed unstimulated saliva showed calcium and phosphates reduction by half in 50% and 30% of pilots, respectively. Investigation of hair elemental composition displayed also deficiency of Ca and P in pilots. The authors recommend methods for dental rehabilitation as an indispensable part of medical care for flying personnel.

The prosthetic management of gingival aesthetics.

Periodontal disease, trauma, and congenital defects can result in both soft tissue and hard tissue defects that can present with aesthetic problems. The management of these problems may be limited to prevention or surgical management which can result in significant morbidity especially if a second surgical site for grafting is utilised. This article describes the various prosthodontic techniques to improve gingival aesthetics using contemporary materials such as gingivally coloured composite and gingivally coloured porcelain in addition to more traditional materials such as standard prosthetic acrylic.

Full-mouth rehabilitation using a multidisciplinary approach: material and periodontal considerations.

The complete aesthetic rehabilitation of dentition can be a complicated task. A multidisciplinary approach is often necessary to achieve ideal results. Clinical crown lengthening surgery can develop an aesthetic soft tissue profile and sufficient tooth structure for preparation and restoration. In addition, the development of novel all-ceramic zirconia materials has resulted in the delivery of improved aesthetics, function, and longevity. This article discusses the use of zirconia crowns in multidisciplinary full-mouth rehabilitation and provides recommendations to enhance the performance of these restorations.

Evaluación del distalador molar Belussi / Evaluation of Belussi's molar distalizer

La distalización de los molares superiores en mesogresión es una alternativa de tratamiento muy utilizado en nuestros días. Se conocen muchos métodos de distalización molar, estos han evolucionado notablemente y siguen siendo eficaces en el tratamiento. El objetivo de esta investigación fue evaluar los cambios dentales producidos por el distalador molar Belussi. El aparato fue empleado en 11 pacientes con una edad promedio de 12 años, distoclusión de molares causada por mesogresión, y con tipo facial favorable. A cada uno se le confeccionaron modelos de estudio y se le realizaron fotografías, radiografías panorámicas y telerradiografías laterales de cráneo, antes y después del tratamiento, para analizar las variables objeto de estudio. El aparato se mantuvo en boca hasta lograr un sobretratamiento de la relación molar. Finalmente, se obtuvo una distalización molar de 4,45 mm acompañada de una inclinación de 5,55°, con una pérdida mínima de anclaje temporal(AU)

The distalization of the superior molars in mesial migration is a useful alternative treatment nowadays. Many methods of molar distalization are known. They have significantly evolved and they are still effective in the treatment. The objective of this investigation was to evaluate the dental changes produced by Belussi Molar Distalizer. The appliance was used in 11 patients with an average of 12 years-old, distoocclusion of molars caused by mesial migration and with a favorable facial type. Study models were made for each one of them and pictures, panoramic x-rays and lateral X-rays of the skull were taken, before and after the treatment, to analyze the variables object of study. The appliance was kept in the mouth until achieving an overtreatment of the molar relation. Finally, a molar distalization of 4,45 mm accompanied with an inclination of 5,55° was obtained, with a minimum loss of temporary anchorage(AU)

The use of CT scan based planning for oral rehabilitation by means of implants and its transfer to the surgical field: a critical review on accuracy.

The purpose of the present paper is to review the literature on the use of CT scan based planning for oral rehabilitation and its transfer to the surgical field by means of a surgical guide. The first part will deal with surgical guides based on tomographies or CT scan data often using dedicated software, but manually fabricated. In the second part, CT-derived drill guides are discussed, which are fabricated by means of CAD/CAM technology or other computer-controlled technology. The deviations between the position of the implants at the planning stage and after the surgery are of utmost importance, especially when flapless procedures are applied. The maximal deviations are often not stated in the literature. This should be taken into account when a system is applied clinically.

[Construction of the new dental arch in the prosthetic rehabilitation of cleft lip and palate. Case report]. / Uj fogív megteremtése szájpadhasadékos páciens protetikai rehabilitáclója során Esetismertetés.

The authors describe the prosthodontic rehabilitation of an adult patient with unilateral cleft lip and palate. After the surgical and orthodontic treatment of cleft lip and palate patients the prosthodontic treatment was started to correct the palatal defect, the malocclusion and the missing teeth. The authors emphasize on preliminary steps by using diagnostic casts and try-in dentures and they also suggest other directives in the dental management of cleft lip and palate patients.

[Prosthetic rehabilitation of cleft palate patients with fixed partial dentures]. / Szájpadhasadékos betegek protetikai rehabilitációja rögzített fogmúvekkel (Esetismertetés).

Treatment of cleft palate patients demands a well coordinated work of medical and dental specialists. In spite of the surgical and orthodontic therapy a prosthetic rehabilitation is often necessary because of missing teeth, maxillary hypoplasia, malocclusion and palatal defects. The prosthetic phase begins immediately after the orthodontic treatment. In this way the fixed partial denture replaces the retention appliance and stabilizes the achieved status. The aim of the prosthetic treatment is to improve the function of the masticatory apparatus, speech and aesthetic appearance of the patient. An important task of the prostheses is to support and lift up the upper lip and the base of the nose. There are several factors, which make the treatment difficult, like underdeveloped and collapsed maxillary arch, retrognath position of the maxilla, missing alveolar ridge, defects of the bone and mucosa, scars and stiffness of the upper lip. The maintenance of the oral hygiene with the fixed restorations is often difficult because of the stiffness of the upper lip, therefore the design of the pontic is very important especially in the cases, when the missing processus alveolaris has to be replaced in order to improve the harmony of the face.

[Oral health of community-dwelling elderly. 2. The subjective aspect of oral health]. / Mondgezondheid van thuiswonende ouderen. 2. Het subjectieve aspect van mondgezondheid.

In this study oral health of elderly persons as perceived by the subjects was evaluated. Phenomena often mentioned were problems with chewing and biting, dry mouth, retention of food particles between teeth or below the prosthesis, (in edentates) sensitivity of teeth for warm or cold foods and (in edentates) lack of retention of the lower prosthesis. In a lot of persons these problems affect quality of life.

[Laser physiotherapy of stomatological diseases]. / Lazernaia fizioterapiia stomatologicheskikh zabolevanii.

Modern methods of laser prophylaxis and physiotherapy of numerous dental diseases in cariesology, endodontia, periodontology, surgery, orthodonty, pedodontics, implantology, etc., using new-generation laser technologies, are reviewed.