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Aim of study was to compare the clinical visual and radiographic diagnostic technique with histological analysis of early proximal carious lesions. Materials and method. Study group included 96 proximal surfaces (48 teeth obtained from dental extractions for orthodontic or periodontal reasons). The proximal surfaces were examined by visual clinical examen and radiographic examen. A histological assessment was performed as gold standard. The sensivity and specificity values were calculated for clinical and radiographic examen. The values were analysed using McNemar test, with significance threshold p < 0.05. Results. Significant statistical differences were obtained when comparing both the sensitivity and specificity of the radiological detection method compared to the clinical method (p=0.0001

Aims of study. The aims of study were as follows: assessment of esthetic, functional and biological FDI indices of posterior composite restorations; assessment of decisions for non-intervention vs. repair/replacement of the posterior composite restorations. Materials and method. The retrospective study was performed on a study group of 69 patients (mean age: 25.31± 4,45 yrs; gender: 36 males, 33 females) that were treated for various dental pathologies in Odontology-Periodontology, Fixed Restorations of Clinical Learning Base of Faculty of Dental Medicine, U.M.F. Grigore T.Popa Iași (Romania) with a total number of 309 posterior composite restorations (class I and II Black) aged 3-5 yrs. The composite restorations were clinically evaluated using visual-tactile method. The evaluations were carried out during the recall session by an independent examiner, according to the FDI criteria (esthetic, functional, biological). The frequency of non-intervention versus repair/replacement decision was assessed globally and related to the parameters of the study group (gender, cariogenic risk, cavity design, arch/dental group location). Statistical analysis was performed in SPSS 29.0. Quantitative variables were characterized by descriptive statistics (means and standard deviations). Results. In the study group, 38,8% of all composite resin restorations required repair or replacement (FDI scores 4-5). The decisions of repair/replacement related to the assessed variables were as follows: 22,4% (Class I) vs 54,2% (Class II); 30,6% (males) vs 31% (females); 42,9% (high cariogenic risk) vs 20,4% (low cariogenic risk); 29,7% (Mx location) vs 31,5% (Md location); 41,4% (premolars) vs 49,5% (molars). Conclusions. 31% of posterior composite restorations aged 3-5 years require repair or replacement. Surface condition and margin discoloration are most frequent esthetic scores related to decisions of repair or replacement. Significantly higher percentages of Class II composite restorations (versus Class I) and molars restorations (versus premolars) were associated to requires repair or replacement. The most frequent biological score related to replacement decisions is the presence of secondary caries, mostly in Class II restorations.

In the present case report, the use of the composite resin injection technique with flowable composite resin was described, aiming to rapidly restore functionality and aesthetics in a patient with severe dental wear. The used technique helped achieve an appropriate morphology, functionality and aesthetics within a reduced execution time. Initially, the teeth were clinically examined, then digital scanning was performed, on the basis of which the 3D wax up model was realized. The obtained model was impressed using a transparent silicone material, so that the silicone guide - on the basis of which the mock-up and, subsequently, the flowable resin injection technique were performed - was made. The results obtained by flowable composite resin injection and wax-up and mock-up techniques are highly satisfactory from an aesthetic, morphological and functional point of view, although the behavior over time should still be evaluated. [ABSTRACT FROM AUTHOR]

The aim of this in vitro study was to evaluate the color variation of a nanohybrid composite resin (GrandioSO, VOCO), a flowable composite (GrandioSO Flow, VOCO), a heavy flow composite (GrandioSO Heavy flow, VOCO) and a sealant (Grandio Seal, VOCO) submersed in three different staining solutions (red wine, coffee, cola drink) for 14 days. Twenty samples from each tested material were prepared and divided into 4 groups, according to the materials employed. Each group was then divided into 4 subgroups, according to the submersion solutions: Subgroup "Saliva" - artificial saliva (AFNOR, Biochemazone™) as a control subgroup; Subgroup "Red Wine" - dry red wine (Negru de Purcari Wine), Subgroup "Cola" - Pepsi-cola Company, Subgroup "Coffee" - Nescafe Brasero. The samples were submersed in solutions for 14 days and stored in an incubator at 37 °C. A portable spectrophotometer NR10QC 3NH was used for color assessment after 1, 7 and 14 days of submersion, using the CIE L*a*b* system. Paired t-test, Repeated Measures ANOVA and post-hoc Bonferroni tests were used for statistical analysis. The highest value of color variation was recorded by group C after 14 days of submersion in red wine solution (ΔE=4.76), while the lowest values were shown by group B after 14 days of submersion in cola solution (ΔE=0.48). In group B, differences were observed between subgroups saliva and cola (p=0.046) after 14 days. In group C, differences were recorded after 7 days between subgroups saliva and red wine (p=0.00), after 14 days between subgroups saliva and red wine (p=0.00), and between subgroups saliva and coffee (p=0.007). In group D, differences were observed after 7 days between subgroups saliva and red wine (p=0.001) and subgroups saliva and coffee (p=0.00). Fourteen days of continuous contact with cola beverage affects the color stability of the heavy flow composite resin, while red wine or coffee consumption influences the color of the resin-based sealant. The nanohybrid composite resin and the resin-based sealant show color variations after seven days of continuous contact with red wine. [ABSTRACT FROM AUTHOR]

The aim of the present study was to assess by using a questionnaire, the knowledge and understanding level of dental postoperative sensitivity through dental practitioners. A number of 431 dental practitioners coming from rural or urban practices, in private or public environment, with a bachelor’s degree or with postgraduate studies received this specifically developed questionnaire. The questionnaire consisted of a series of socio-demographic questions, followed by 14 questions related to postoperative sensitivity. The questionnaire contained 7 single-choice and 7 multiple-choice questions. For the statistical analysis of the obtained results Pearson Chi-square and Independent sample t-test were used. For all 14 questions, the correct answers were indicated by the majority of respondents, regardless of the training level or the environment of origin. Both postgraduate and bachelor’s degree dental practitioners had a similar level of knowledge regarding the etiology, symptomatology and therapeutic management of postoperative dental sensitivity. The knowledge level about dental postoperative sensitivity does not differ between dental practitioners in the public and private sectors.

Remineralization may be defined as the process through which the calcium and phosphate ions from external sources are brought into contact with the tooth, so that their deposition on the demineralized crystals is promoted, a gain of minerals being thus obtained. In latest decades, new preventive/therapeutical options have been proposed in order to "heal" the subsurface non-cavitary carious lesions, such as the sealing and proximal infiltration method, fluorization (by means of slow release devices), new methods of white-spot lesions' remineralization, modification of the cariogenity of the bacterial biofilm (ozono-therapy and probiotics), or measures for increasing enamel's resistance to demineralization (laser therapy). Alternative treatments to fluoride therapy are represented by: products containing calcium phosphate (systems of remineralization with crystalline calcium phosphate - dihydrated dicalcic phosphate, tricalcic phosphate, bioactive glasses; systems containing amorphous unstabilized calcium phosphate; systems containing stabilized calcium phosphate), the SensiStat technology (calcium carbonate carriers), trimetaphosphate ion (TMP), self-assembling peptides, the Pro-Argin technology, hydroxyapatite nanoparticles (nanotechnology), the Anticay and the Pronamel technologies. [ABSTRACT FROM AUTHOR]