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1.
Quintessence Int ; 52(2): 176-186, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33433083

RESUMO

At present, the most important criterion for the size selection of interdental brushes is the PHD-value (passage hole diameter) according to the ISO standard for interdental brushes ISO 16409:2016. The PHD size range of commercially available products currently lies between 0.6 and 5.2 mm. With the exceptions of special situations, a range between 0.7 and 2.9 mm is sufficient for clinical routine. As most products have longer filaments nowadays, one brush can often be applied for two PHD intervals. Consequently, adequate patient counseling and the individual selection of the appropriate interdental brushes can generally be achieved with an assortment of 12 systematically arranged interdental brush sizes. An application example is the "Heidelberg set" described herein. It is crucial that the correct choice of size is based upon continuously rising PHD-values, and not upon parameters such as stem size, outer diameter of filaments, or similar, as these do not allow for a reliable conclusion regarding the interdental passage. The usage of ISO sizes is also not recommendable due to their insufficient size differentiation. (Quintessence Int 2021;52: 176-186; doi: 10.3290/j.qi.b872241; Revised from an article originally published (in German) in Parodontologie 2020;31(1)37-49)

.


Assuntos
Dispositivos para o Cuidado Bucal Domiciliar , Placa Dentária , Índice de Placa Dentária , Humanos , Higiene Bucal , Escovação Dentária
2.
Oral Health Prev Dent ; 18(1): 343-354, 2020 Apr 01.
Artigo em Inglês | MEDLINE | ID: mdl-32618458

RESUMO

PURPOSE: Preventive dentistry aims to improve oral hygiene, including the use of interdental cleansing aids. Clear and simple classifications may positively impact patient communication and motivate oral health behaviour. To date, there is no comparative analysis of interdental brush classifications and sizes. MATERIALS AND METHODS: A total of 2320 interdental brush samples by 24 manufacturers was examined regarding their passage hole diameter (PHD) according to the ISO standard for interdental brushes (ISO16409:2016), and their current classifications were evaluated. Inter- and intrarater reliability of the ISO size classification were determined based on 20 raters and 10 interdental brushes. The insertion force for these interdental brushes was analysed in vitro. RESULTS: Excellent intra- and interrater reliability was achieved (intraclass correlation coefficient (ICC) ≥ 0.973) overall, although greater variance was observed for bigger brush sizes. Insertion forces varied depending on size and form of the brushes, amounting to 1.58 N (SD = 1.27 N) for cylindric and tapered brushes, and to 2.31 N (SD = 0.81 N) for waist-shaped brushes. The size range of commercially available products was 0.6-5.2 mm PHD, 90% presenting with a PHD ≤ 2.0 mm. Size intervals were unsystematic. The ISO size was indicated by 33% of all manufacturers, the exact PHD by 25%. CONCLUSIONS: The determination of the PHD is a reproducible instrument for most brushes currently on the market. In vitro, forces developed based on this classification are mostly moderate, thus unlikely to cause periodontal trauma. Given the discontinuous range and unclear labelling of available products, the development of a simplified classification system by usage of the PHD may benefit the practitioner and patient alike by contributing to improve oral hygiene behaviours.


Assuntos
Dispositivos para o Cuidado Bucal Domiciliar , Placa Dentária , Humanos , Higiene Bucal , Reprodutibilidade dos Testes , Escovação Dentária
3.
J Adhes Dent ; 21(3): 239-245, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31093621

RESUMO

PURPOSE: To present a new method for the closure of single-tooth gaps using metal-, ceramic-, and glass-fiber-free direct composite cantilever restorations. MATERIALS AND METHODS: The new technique is described step by step in a case report, showing the creation and adhesive bonding of a single-retainer composite pontic. Furthermore, six cases are reported with radiological and clinical follow-up assessments over a period of one to three years after gap closure. RESULTS: Excellent outcomes were observed clinically and radiologically. No failures due to material properties (such as composite fractures, chipping) or esthetic limitations through discoloration were observed. Due to good oral hygiene, no periodontal complications were found during the observation period. CONCLUSIONS: This new minimally invasive procedure expands the therapeutic spectrum for the management of single-tooth gaps. It does not require laboratory-fabricated restorations and can be considered when conventional treatments, such as fixed dental prostheses or implants, are not options for medical reasons or due to special patient preferences.


Assuntos
Resinas Compostas , Materiais Dentários , Cerâmica , Falha de Restauração Dentária , Prótese Parcial Fixa , Humanos
4.
J Clin Periodontol ; 43(6): 512-9, 2016 06.
Artigo em Inglês | MEDLINE | ID: mdl-26810391

RESUMO

AIM: To compare long-term effects of brushing with an oscillating-rotating power toothbrush or an ADA reference manual toothbrush on pre-existing gingival recession. MATERIALS AND METHODS: In this controlled, prospective, single-blind, parallel-group study, healthy subjects with pre-existing recession were randomized and brushed with a power toothbrush (n = 55) or an ADA reference manual toothbrush (n = 54) for a 3-year study period. Subjects were required to brush their teeth twice daily for 2 min. using a standard fluoride toothpaste. During the study, subjects were assessed for clinical attachment loss and probing pocket depths to the nearest mm at six sites per tooth by the same calibrated examiner. Gingival recession was calculated at pre-existing sites as the difference between clinical attachment loss and probing pocket depths. Hard and soft oral tissues were examined to assess safety. RESULTS: After 35 ± 2 months, mean gingival recession did not differ significantly between groups, but was significantly reduced from baseline (p < 0.001), from 2.35 ± 0.35 mm to 1.90 ± 0.58 mm in the power and from 2.26 ± 0.31 mm to 1.81 ± 0.66 mm in the manual group. CONCLUSIONS: Gingival recession in subjects with pre-existing recession was significantly reduced after 3 years of brushing with either a power or manual toothbrush.


Assuntos
Escovação Dentária , Placa Dentária , Índice de Placa Dentária , Desenho de Equipamento , Retração Gengival , Gengivite , Humanos , Estudos Prospectivos , Método Simples-Cego
5.
Quintessence Int ; 46(5): 373-80, 2015 May.
Artigo em Inglês | MEDLINE | ID: mdl-25821863

RESUMO

Current treatment protocols and recent developments in composite resin technology allow for extended indication of direct composite resin restorations. This article presents clinical longterm observations of direct composite resin restorations indicated for primary and replacement therapy, repair restorations, direct crowns, and composite buildups for the correction of tooth form.


Assuntos
Resinas Compostas , Restauração Dentária Permanente/métodos , Coroas , Falha de Restauração Dentária , Estética Dentária , Humanos , Resultado do Tratamento
6.
Acta Odontol Scand ; 71(5): 1129-35, 2013 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-23351186

RESUMO

OBJECTIVE: To compare the increase of DMF-T and DMF-S in patients with aggressive periodontitis (AgP) and chronic periodontitis (ChP) after active periodontal therapy. MATERIALS AND METHODS: One hundred and thirty-six periodontally treated patients were re-examined after 10 years. Dental and periodontal status was assessed and patients' charts were screened for diagnosis, compliance to supportive periodontal treatment (SPT) and DMF-T/-S at baseline and re-examination. δDMF-T/-S was calculated and multi-level regression analyses were performed to identify factors contributing to increase of DMF-T/-S. RESULTS: Thirty patients with AgP, 37 with moderate ChP and 69 with severe ChP could be included. δDMF-T between first visit and re-examination was 2.07 (SD = 2.51, range = 0-14 teeth), mean δDMF-S = 14.66 (SD = 14.54, range = 0-83 surfaces). Patients with AgP showed a similar increase in DMF-T/-S to those with ChP. Regression analysis identified compliance as the only factor significantly accounting for preventing an increase of DMF-S (p = 0.017). No factor had a significant impact on DMF-T. CONCLUSIONS: DMF-T and DMF-S developed similarly in periodontally-treated patients with AgP and ChP during a follow-up of 10 years. SPT showed a positive influence on avoiding decline in DMF-S in periodontally compromised patients. No significant impact was detected for all other studied factors.


Assuntos
Cárie Dentária/complicações , Periodontite/complicações , Periodontite/terapia , Adulto , Idoso , Doença Crônica , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade
7.
Dent Mater ; 28(5): 541-7, 2012 May.
Artigo em Inglês | MEDLINE | ID: mdl-22230106

RESUMO

OBJECTIVES: The aim of the study was to analyze the dissolving depth of adhesive resin monomers into pre-polymerized fiber-reinforced composites (FRC) with either a semi-interpenetrating polymer network (semi-IPN) or a cross-linked polymer (CLP) matrix. METHODS: Five unidirectional FRCs were tested, including one semi-IPN FRC (everStick(®) C&B, StickTech, (ES)) and four CLP-FRCs (GrandTec(®), VOCO, (GT); Dentapreg(®), ADM, (DP); TenderFiber(®), Micerium, (TF); Splint-It(®), Pentron Clinical Technologies, (SI)). The FRCs were light-polymerized following manufacturers' instructions: the oxygen inhibition layers were removed and the adhesive resin (Optibond-FL(®), KerrHawe) was labeled with a fluorescent dye (Rhodamine-B-isothiocyanate), which was then applied to the FRCs (5 min) and light-polymerized (40s). Specimens were then prepared for confocal laser scanning microscopy. Three FRC strands per group were sectioned orthogonally to the direction of fibers, thus forming nine slices in each group. Four images were taken from each slice and the depths of adhesive penetration were measured in four sites per image (n=144 measurements per group). SIGNIFICANCE: Dissolving depths were 17.28 (3.04) µm (ES), 12.58 (2.94) µm (SI), 7.57 (1.91) µm (TF), 3.27 (0.73) µm (DP) and 2.55 (0.63) µm (GT). Samples were normally distributed. Differences between groups were analyzed by ANOVA (PostHoc Scheffé) showing four subgroups (p=0.05). The infiltration layers detected were either continuous/homogenous (ES, TF, DP GT) or discontinuous/insular (SI). CONCLUSION: The adhesive resin monomers were able to diffuse significantly deeper into pre-polymerized semi-IPN specimens than into CLP materials. Semi-IPN specimens showed a homogenous and comparatively deeper layer of infiltration. The diffusion capabilities of secondary-IPN formation might increase the opportunity to establish a good bond between pre-polymerized FRC and new resin.


Assuntos
Bis-Fenol A-Glicidil Metacrilato/química , Resinas Compostas/química , Materiais Dentários/química , Vidro/química , Cimentos de Resina/química , Reagentes para Ligações Cruzadas/química , Difusão , Corantes Fluorescentes , Humanos , Cura Luminosa de Adesivos Dentários , Teste de Materiais , Microscopia Confocal , Permeabilidade , Polimerização , Polímeros/química , Rodaminas , Solubilidade , Propriedades de Superfície
8.
J Clin Periodontol ; 38(11): 984-91, 2011 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-21883361

RESUMO

OBJECTIVE: To determine whether incidence and severity of cyclosporine A (CsA)-induced gingival overgrowth (GO) is related to expression nuclear factor of activated T cells-regulated genes (NFAT-regulated genes). MATERIAL AND METHODS: Expression of NFAT-regulated genes was determined in 36 transplant patients medicated with CsA by real-time PCR before and 2 h after drug intake and residual NFAT activity was estimated as ratio of both measurements. Demographic, periodontal and pharmacologic parameters were recorded and GO assessed from models. Subjects were divided into two groups according to the degree of GO (responders: GO score≥10%). Groups were compared using parametric and non-parametric tests. The association of various CsA-specific and periodontal parameters on incidence and extent of GO were determined using regression analysis. RESULTS: Responders had a more than twofold lower residual NFAT activity than non-responders (7.9% and 18.1%, respectively; p<0.001). Multiple regression analysis revealed gingival inflammation, salivary CsA concentration, and residual NFAT activity to be significant factors influencing the expression of GO. Seventy-seven percent of the variability of GO could be explained by these parameters. CONCLUSIONS: This study showed that pharmacodynamic parameters such as residual NFAT activity may be promising prognostic indicators to identify patients with increased risk for GO.


Assuntos
Regulação da Expressão Gênica/efeitos dos fármacos , Expressão Gênica/efeitos dos fármacos , Crescimento Excessivo da Gengiva/genética , Fatores de Transcrição NFATC/fisiologia , Adulto , Idoso , Disponibilidade Biológica , Estudos de Casos e Controles , Distribuição de Qui-Quadrado , Estudos Transversais , Ciclosporina/efeitos adversos , Ciclosporina/sangue , Ciclosporina/farmacocinética , Feminino , Crescimento Excessivo da Gengiva/induzido quimicamente , Gengivite/genética , Humanos , Imunossupressores/efeitos adversos , Imunossupressores/sangue , Imunossupressores/farmacocinética , Transplante de Rim , Masculino , Pessoa de Meia-Idade , Projetos Piloto , Análise de Regressão , Saliva/química , Estatísticas não Paramétricas , Adulto Jovem
9.
J Adhes Dent ; 13(2): 187-94, 2011 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-20157682

RESUMO

PURPOSE: To obtain survival data on 32 fiber-reinforced fixed dental prostheses which were inserted in our department and to rate the quality of these restorations on the basis of esthetic, biological, and functional parameters. MATERIALS AND METHODS: Thirty-two patients with fiber-reinforced fixed dental prostheses were included in the study. The fiber frameworks were made of a polymer-monomer-preimpregnated continuous unidirectional glass fiber material. The survival times, failure events, and clinical parameters were recorded. Restorations in function without previous failure were classified as "Overall Survival". The classification "Functional Survival" was assigned in the event of minor failure and subsequent repair. Loss of the restoration was regarded as "Failure". The quality rating was performed using modified USHPS/Ryge criteria. RESULTS: The follow-up interval ranged from 2 to 64 months with a median follow-up time of 18.2 months. Twenty-four restorations were classified as "Overall Survival", seven were classified as "Functional Survival", and one was classified as "Failure". The overall survival at the median follow-up time was 74.4%. For the majority, the quality rating (USHPS/Ryge criteria) yielded clinically excellent results in all categories. No restoration was rated as insufficient or poor. CONCLUSION: Fiber-reinforced composite fixed dental prostheses provide sufficient stability and very good esthetic, biological, and functional performance in the case of specific clinical indications.


Assuntos
Resinas Compostas , Prótese Parcial Fixa , Adolescente , Adulto , Criança , Falha de Restauração Dentária , Feminino , Vidro , Humanos , Estimativa de Kaplan-Meier , Masculino , Estudos Retrospectivos
10.
Clin Oral Investig ; 15(3): 417-25, 2011 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-20306099

RESUMO

This study determined the mechanical properties of 19 dental floss holders. Eight single-use holders and 11 reusable ones were tested. An in vitro model with dental proximal contact strength of 8 N was created. Every device had to pass the proximal contact 30 times. We measured (1) the displacement of the floss [mm], (2) the force [N] necessary to pass the proximal contact after the 30th passage, (3) the loosening of the floss (offset [mm]), and (4) the change in the distance between the branches [mm]. Each measurement was repeated seven times. The results are displacement of the floss after 30 passages, 2.0 to 9.2 mm; passage force, 2.6 to 11 N; increases in branch distance, 0-2.9 mm; offset of the floss, 0-1.8 mm (all numbers are medians). Based on cleaning a full dentition (30 passages), we suggest introducing minimal requirements of <4 mm for the displacement of the floss, ≥11 N for the force, and <0.1 mm for the difference in branch distance and the offset. Only two products fulfilled our criteria. The tests show that dental floss holders vary extremely in their mechanical properties. Their effective use seems often impossible due to limited mechanical properties.


Assuntos
Dispositivos para o Cuidado Bucal Domiciliar , Análise do Estresse Dentário/instrumentação , Desenho de Equipamento , Reutilização de Equipamento , Mecânica , Higiene Bucal/instrumentação
11.
Int J Periodontics Restorative Dent ; 30(1): 63-71, 2010 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-20224832

RESUMO

The treatment of drug-induced gingival overgrowth is compounded by the high recurrence rate resulting from chronic use of the medication and the persistence of other risk factors. In this case series, the treatment outcome of a nonsurgical periodontal therapy, according to the concept of full-mouth disinfection in 11 patients with drug-induced gingival overgrowth, is described. All clinical parameters improved significantly after therapy. Only 6% of teeth received further surgical treatment. The clinical situation remained stable during the recall. The present case series suggests that full-mouth disinfection might be a beneficial treatment concept for drug-induced gingival overgrowth, reducing the need for further surgical intervention.


Assuntos
Anti-Infecciosos Locais/administração & dosagem , Clorexidina/administração & dosagem , Crescimento Excessivo da Gengiva/induzido quimicamente , Crescimento Excessivo da Gengiva/tratamento farmacológico , Adulto , Idoso , Bloqueadores dos Canais de Cálcio/efeitos adversos , Ciclosporina/efeitos adversos , Raspagem Dentária , Dentifrícios/uso terapêutico , Feminino , Géis/uso terapêutico , Humanos , Imunossupressores/efeitos adversos , Masculino , Pessoa de Meia-Idade , Antissépticos Bucais/uso terapêutico , Estudos Retrospectivos , Resultado do Tratamento , Adulto Jovem
12.
Dent Mater ; 26(3): 257-63, 2010 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-19963262

RESUMO

OBJECTIVES: "Submicron hiatus" represents a potential space between the base of the collagenous network and the mineralized dentin when it is acid etched for bonding. This study evaluated the relationship between microtensile bond strength (microTBS) and occurrence of submicron hiatus formations at the resin-dentin interface using the same specimens. METHODS: Resin-dentin bonded micro-specimens (sticks with a size of 300 microm x 300 microm x 8mm) were prepared using one of two material combinations (group I: Syntac Classic/Tetric Ceram Cavifil: n=51 group II: Prime & Bond NT/Tetric Ceram Cavifil: n=56). After labeling the primer component with a tiny amount of rhodamine-B-isothiocyanate, submicron hiatus formations were imaged nondestructively using a confocal laser scanning microscope (CLSM). Subsequently specimens were subjected to a microTBS test. RESULTS: For the influence of submicron hiatus formations on microTBS with the Syntac Classic group, the nonparametric Spearman's correlation was -0.329 at p=0.02. For the Prime & Bond NT group, the nonparametric Spearman's correlation was -0.356 at p=0.007. Analyzing the effect of submicron hiatus on without discriminating by group resulted in a Spearman's correlation coefficient of -0.341 at p=0.001; microTBS and quality of hybrid layer showed a correlation coefficient of 0.849 at p=0.001, and microTBS and quality of tag formation showed a correlation coefficient of 0.474 at p=0.001. SIGNIFICANCE: The degree of submicron hiatus formations had an influence on microtensile bond strength for both the Syntac Classic and the Prime & Bond NT group.


Assuntos
Colagem Dentária , Adesivos Dentinários , Dentina , Cimentos de Resina , Condicionamento Ácido do Dente , Colágeno , Resinas Compostas , Restauração Dentária Permanente/métodos , Análise do Estresse Dentário , Corantes Fluorescentes , Humanos , Teste de Materiais , Microscopia Confocal , Ácidos Polimetacrílicos , Estatísticas não Paramétricas , Resistência à Tração
13.
Dent Mater ; 25(1): 135-41, 2009 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-18606443

RESUMO

OBJECTIVES: This study evaluated the relationship between microtensile bond strength (microTBS) and occurrence of nanoleakage at the resin-dentin interface using the same specimens. METHODS: Resin-dentin-bonded micro-specimens (sticks with a size of 300 microm x 300 microm x 8mm) were prepared using one of two material combinations (group I: Syntac classic/Tetric Ceram Cavifil: n=57; group II: Prime & Bond NT/Spectrum TPH: n=52). After immersion of the micro-specimens in 0.1% rhodamine-B solution for 1h, nanoleakage was imaged nondestructively using a confocal laser scanning microscope (CLSM). Then the specimens were subjected to a microTBS test. RESULTS: For the influence of nanoleakage on microTBS with the Syntac classic/Tetric Ceram Cavifil group, the nonparametric Spearman correlation was 0.033 at p=0.805. For the Prime & Bond NT/Spectrum TPH group, the nonparametric Spearman correlation was 0.077 at p=0.584. SIGNIFICANCE: The degree of nanoleakage had no influence on microtensile bond strength for the Syntac classic/Tetric Ceram Cavifil or for the Prime & Bond NT/Spectrum TPH group.


Assuntos
Resinas Compostas/química , Colagem Dentária , Infiltração Dentária/classificação , Materiais Dentários/química , Dentina/ultraestrutura , Acrilatos/química , Adesivos Dentinários/química , Corantes Fluorescentes , Humanos , Teste de Materiais , Microscopia Confocal , Ácidos Polimetacrílicos/química , Cimentos de Resina/química , Rodaminas , Estresse Mecânico , Propriedades de Superfície , Resistência à Tração
14.
J Clin Periodontol ; 33(7): 510-6, 2006 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-16820039

RESUMO

OBJECTIVES: It has been demonstrated that extracellular matrix molecules are involved in cyclosporine-induced gingival overgrowth (GO). However, for many of these molecules, it remains unclear whether their abundance is modulated on the protein and gene expression level. MATERIAL AND METHODS: To contribute to this clarification, we have analysed the protein and mRNA expression of type-I collagen (COL1) and decorin (DC) in native specimens obtained from five patients with GO, and matched normal tissue using indirect immunofluorescence (IIM), in situ hybridization (ISH) and quantitative polymerase chain reaction (PCR). RESULTS: IIF revealed a largely co-localized although remarkably increased abundance for COL1 and DC in GO. This increase coincided with an up-regulated gene expression observed for both molecules, as detected by ISH and quantitative PCR. CONCLUSIONS: Analysis of our data clearly demonstrates elevated levels for COL1 and DC and shows for the first time in native human tissue that involvement of these genes in GO is not confined to the protein level but also includes the transcriptional level.


Assuntos
Colágeno Tipo I/biossíntese , Proteínas da Matriz Extracelular/biossíntese , Crescimento Excessivo da Gengiva/metabolismo , Proteoglicanas/biossíntese , Adulto , Estudos de Casos e Controles , Colágeno Tipo I/genética , Ciclosporina/efeitos adversos , Decorina , Proteínas da Matriz Extracelular/genética , Feminino , Imunofluorescência , Expressão Gênica , Crescimento Excessivo da Gengiva/induzido quimicamente , Crescimento Excessivo da Gengiva/genética , Humanos , Imunossupressores/efeitos adversos , Hibridização In Situ , Transplante de Rim , Masculino , Pessoa de Meia-Idade , Proteoglicanas/genética , RNA Mensageiro/análise , Transcrição Genética , Regulação para Cima , Vimentina/biossíntese
15.
Oper Dent ; 31(2): 171-5, 2006.
Artigo em Inglês | MEDLINE | ID: mdl-16827018

RESUMO

PURPOSE: The study tested the hypothesis that the application of a rubber dam influences the reconstruction of proximal contact strengths, while the corresponding contra-lateral teeth are not affected. METHODS: Seventy-four systemically and periodontally healthy subjects in need of a direct posterior composite restoration were treated with the use of a rubber dam. The proximal contact strengths (PCS) were electronically evaluated by measuring frictional forces during removal of a 50.0 +/- 5.0 microm-thick straight metal band. RESULTS: Proximal contact strengths significantly increased from 2.26 +/- 1.45N before to 3.83 +/- 2.34N after application of the rubber dam; whereas, the variation of PCS at the corresponding contacts in the contra-lateral quadrant remained within the intra-examiner variance of +/- 0.2N. Upon removal of the rubber dam, there was a statistically significantly drop in PCS from 3.54 +/- 1.87N to 2.31 +/- 1.35N. Again, there was only minimal change in the contra-lateral quadrant. It was concluded that application of the rubber dam affects proximal contact strengths.


Assuntos
Resinas Acrílicas/uso terapêutico , Resinas Compostas/uso terapêutico , Restauração Dentária Permanente/instrumentação , Análise do Estresse Dentário/métodos , Poliuretanos/uso terapêutico , Diques de Borracha/efeitos adversos , Adulto , Restauração Dentária Permanente/métodos , Feminino , Humanos , Masculino , Variações Dependentes do Observador
16.
J Clin Periodontol ; 32(11): 1134-40, 2005 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-16212573

RESUMO

OBJECTIVE: Cross-sectional investigation of associations between psychosocial and periodontal parameters. METHODS: One hundred and ten patients 18-76 years of age were examined clinically and 57 radiographically at the Department of Conservative Dentistry of the University Hospital of Heidelberg: probing depths (PDs) and attachment level (PAL-V) were obtained at six sites per tooth. Inter-proximal bone loss was assessed in 57 patients on panoramic radiographs. Further chemical and general environmental sensitivity, somatization, and smoking status were assessed by several questionnaires. RESULTS: Significant correlations between severe bone loss and age (r=0.38, p=0.004) were observed. PAL-V and PD also correlated with age (r=0.45, p<0.001; r=0.37, p<0.001) and pack years (r=0.21, p=0.031; r=0.3, p=0.002). After adjustment for age, smoking, and sex a negative correlation between chemical odour sensitivity and bone loss, PD=4 mm as well as PAL-V=4 mm was observed. Further, a negative correlation was observed between gastrointestinal sensitivity and PAL-V=4 mm. Psychological stress correlated positively with bone loss. CONCLUSION: The results give evidence for associations of psychosocial factors and periodontal disease. Some environmental traits seem to be related to more favourable periodontal status.


Assuntos
Perda do Osso Alveolar/psicologia , Fumar/efeitos adversos , Adolescente , Adulto , Fatores Etários , Idoso , Perda do Osso Alveolar/diagnóstico por imagem , Métodos Epidemiológicos , Feminino , Humanos , Masculino , Doenças Mandibulares/diagnóstico por imagem , Doenças Mandibulares/psicologia , Doenças Maxilares/diagnóstico por imagem , Doenças Maxilares/psicologia , Pessoa de Meia-Idade , Periodontite/psicologia , Radiografia , Fatores de Tempo
17.
Am J Dent ; 18(1): 50-6, 2005 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-15810482

RESUMO

PURPOSE: To assess the accuracy of linear measurements of bone loss within infrabony defects on digitized radiographs after digital filtering particularly designed to image periodontal bone loss. METHODS: Before surgery, 50 standardized radiographs of 50 infrabony defects were obtained. Intrasurgically the distances from the cementoenamel-junction (CEJ) to the alveolar crest (AC), from the CEJ to the bottom of the bony defect (BD), and the depth of the infrabony component (INFRA) were assessed. All radiographs were digitized and the distances CEJ-AC, CEJ-BD, and INFRA were measured on digitized but unchanged radiographs and after use of the filter. RESULTS: There was a small overestimation of CEJ-AC (0.35-0.68 mm) and underestimation of CEJ-BD (0.84-1.12 mm) and INFRA (0.66-0.76 mm). Accuracy of measurement of the distance CEJ-AC was influenced by vertical angulation difference (P= 0.047) and the intrasurgical CEJ-AC (P= 0.003). Accuracy of CEJ-BD was influenced by intrasurgically assessed bone loss (P= 0.012). Accuracy of INFRA was influenced by individual patient, intrasurgically assessed INFRA (P< 0.001), and filter (P= 0.018).


Assuntos
Perda do Osso Alveolar/diagnóstico por imagem , Radiografia Dentária Digital/instrumentação , Adulto , Idoso , Análise de Variância , Feminino , Filtração/instrumentação , Humanos , Período Intraoperatório , Masculino , Pessoa de Meia-Idade , Reprodutibilidade dos Testes , Método Simples-Cego
18.
Am J Dent ; 17(3): 165-8, 2004 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-15301211

RESUMO

PURPOSE: To evaluate if the in vitro quality of preventive fissure sealants made with compomer-based materials can be improved by modifying the method of application. METHODS: Delton resin-based sealant, Dyract Flow and Dyract Seal compomers were used. The manufacturer's instructions were modified by prolonging the application time of the materials used and by applying the sealer in two layers. Extracted caries-free human molars were fissure sealed under standardized conditions and then exposed to a thermocycling procedure and a dye penetration test. Following the preparation of ground slices the samples were assessed by means of a light microscope and a scanning electron microscope. Statistical analysis of the results was done using a chi-square test. RESULTS: The modified application of the two-compomer-based fissure sealers improved distinctly the quality of such fissure sealants. This was observed with respect to the criteria sealing ability, absence of pores in the sealant and complete filling of the fissure in wide as well as in narrow fissures. Compomer-based fissure sealants applied with the modified technique were equal to conventional resin-based composite fissure sealants regarding sealing ability and complete filling of the fissure. With respect to absence of pores, compomer-based sealants were superior to resin-based composite sealants.


Assuntos
Compômeros/química , Selantes de Fossas e Fissuras/química , Distribuição de Qui-Quadrado , Corantes , Colagem Dentária , Esmalte Dentário/ultraestrutura , Adesivos Dentinários/química , Humanos , Maleatos/química , Teste de Materiais , Microscopia Eletrônica de Varredura , Dente Molar/ultraestrutura , Ácidos Polimetacrílicos/química , Propriedades de Superfície , Temperatura , Fatores de Tempo
19.
J Orofac Orthop ; 65(2): 164-79, 2004 Mar.
Artigo em Inglês, Alemão | MEDLINE | ID: mdl-15206097

RESUMO

BACKGROUND AND AIM: Besides prosthetic and indirect, laboratory-produced restorations, the focus of dental therapy is increasingly on restorative measures and direct restorations as minimally invasive treatment concepts. Thus, the use of direct composite restorations with modern restorative materials for the shaping and recontouring of teeth in combination with orthodontic treatment offers a diversified, extensive sphere of application. The aim of the study was to demonstrate applications for direct composite restorations with reference to selected cases. MATERIAL AND METHODS: The composites used were hybrid composites, which offer increased abrasion resistance and color stability and are applied incrementally. Special attention was paid to the shape, color and structure of the tooth. CASE REPORTS: The case reports present patients in whom relatively narrow or peg-shaped teeth were built up with composite to correct various tooth size discrepancies or cuspids were recontoured by means of direct composite restorations following orthodontic space closure in cases with missing lateral incisors. Similarly, space closure was achieved using orthodontically repositioned lateral incisors recontoured to resemble central incisors after traumatic loss of upper central incisors. Finally, direct composite restorations were used for retention following completion of orthodontic treatment. CONCLUSIONS: Observations over recent years confirm the stability of composites in both form and color, as well as their ability to maintain gingival health. Our case reports demonstrate that, subject to a corresponding indication, recontouring single teeth using direct composite restorations can optimize orthodontic treatment results.


Assuntos
Resinas Acrílicas/uso terapêutico , Resinas Compostas/uso terapêutico , Restauração Dentária Permanente , Ortodontia Corretiva , Poliuretanos/uso terapêutico , Anormalidades Dentárias/terapia , Adesivos Dentinários/uso terapêutico , Estética Dentária , Humanos , Fechamento de Espaço Ortodôntico/métodos , Avaliação de Resultados em Cuidados de Saúde
20.
Schweiz Monatsschr Zahnmed ; 114(12): 1236-51, 2004.
Artigo em Alemão | MEDLINE | ID: mdl-15646671

RESUMO

This survey compares attitudes between populations in Switzerland and Germany, deemed to be important for maintaining oral health. Among others, three aspects were singled out: sugar consumption, smoking and oral hygiene. The annual sugar consumption per capita in Switzerland is 42% higher than in Germany, or 47 kg compared to 33 kg in Germany. The amount recommended by WHO, 22 kg per annum, is exceeded in Switzerland by 114%, in Germany by 50%. The annual cigarette consumption in Switzerland amounts to 2880 per capita, which is 59% higher than that of Germany with 1814. The annual use of tooth paste in Switzerland is an average 333 ml per capita, which corresponds to 53% of the minimal amount (628 ml) recommended by authorities. The annual per capita use of tooth paste in Germany averages 336 ml, or 54% of what is recommended. The annual usage of dental floss in Switzerland is on average 0.15 packets per capita, which is 4.1% of what is seen to be an adequate quantity of 3.65 packets. In Germany the corresponding figures are 0.08 packets and 2.2%. The usage of interdental brushes is minute in both countries with 0.05 packets in Switzerland and 0.04 packets in Germany. These data are contrary to what is often claimed in dental medical literature and mass media which is that the Swiss population is far better at an active oral health maintenance than the German population, due to the financial pressure on Swiss patients (private payments for dental services).


Assuntos
Comportamentos Relacionados com a Saúde , Saúde Bucal , Higiene Bucal/estatística & dados numéricos , Comparação Transcultural , Sacarose na Dieta , Emigração e Imigração , Alemanha/epidemiologia , Humanos , Higiene Bucal/economia , Higiene Bucal/psicologia , Fumar/epidemiologia , Suíça/epidemiologia
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