Effects of traumatic dental injuries, malocclusions and dental caries on oral health-related quality of life in early childhood

Amaç: Bu çalışmanın amacı, travmatik diş yaralanmalarının (TDY) ve diş çürüğünün okul öncesi çocukların Ağız Sağlığı ile İlişkili Yaşam Kalitesi (OHRQoL) üzerindeki etkisini değerlendirmektir. Gereç ve Yöntemler: Ağız Sağlığı ile İlişkili Yaşam Kalitesini ölçmek için 206 okul öncesi çocuğun velisine 13 soruluk Erken Çocukluk Çağı Ağız Sağlığı Etki Ölçeği (ECOHIS) uygulanmıştır. Çocukların travmatik diş yaralanmaları, diş çürüğü (dmft skorları) ve ön bölge maloklüzyon özelliklerine bakılmıştır. Bulgular: Çocukların yaş ortalaması 4.09 ± 0.97 bulunmuştur. Diş çürüğü, Ağız Sağlığı ile İlişkili Yaşam Kalitesi üzerinde olumsuz bir etki göstermiştir. Diş çürüğü; Ağız Sağlığı ile İlişkili Yaşam Kalitesi ortalaması, semptomları, fonksiyonu, psikolojisi, ailesel sıkıntı ve aile fonksiyon alanları üzerinde olumsuz bir etki göstermiştir. Ön bölgede maloklüzyon varlığı sadece sosyal etkileşim alanı üzerinde olumsuz bir etki göstermiştir. Komplike travmatik diş yaralanmaları, komplike olmayan travmatik diş yaralanmalarına göre semptomlar açısından daha olumsuz bir etki göstermiştir. Sonuç: Travmatik dental yaralanma ve maloklüzyon gözlenen dişin varlığı, okul öncesi çocukların Ağız Sağlığı ile İlişkili Yaşam Kalitesi üzerinde yalnızca çocuk alanında olumsuz bir etkiye sahiptir; ancak, diş çürüğü, hem çocuk alanında hem aile alanında Ağız Sağlığı ile İlişkili Yaşam Kalitesi ile güçlü bir ilişkiye sahiptir.Background: The aim of this study was to assess the effect of traumatic dental injuries and dental caries on the Oral Health- Related Quality of Life (OHRQoL) of preschool children. Methods: The 13 questions and six domains of Early Childhood Oral Health Impact Scale (ECOHIS) were administered to 206 preschool children’s parents to measure Oral Health-Related Quality of Life. Type of traumatic dental injuries, dental caries (dmft scores), and anterior malocclusions traits of the children were recorded after the oral examination. Results: The children’s mean age was 4.09±0.97. Dental caries showed a negative impact on the overall Oral Health-Related Quality of Life mean and symptoms, function, psychological, parental distress, and family function domains. The presence of anterior malocclusion traits showed a negative effect only on the social interaction domain. Complicated traumatic dental injuries showed a negative effect on symptoms domain than uncomplicated traumatic dental injuries. Conclusion: Having a tooth with traumatic dental injuries and malocclusions have a negative impact on the Oral Health- Related Quality of Life of preschool children only one domain (child domain), although dental caries, has a strong association (child domain+family domain) with the Oral Health- Related Quality of Life of preschool children and their parents

Children's dental treatment requirements of first permanent molars with poor prognosis

Objectives This retrospective study aimed to (i) survey the correlation between decayed, missing, filled teeth (DMFT), and presence of first permanent molars (FPMs) with poor prognosis and (ii) evaluate the treatment requirements. Materials and methods Seven hundred seventy-three children with fully erupted FPMs were included in this study. DMFT for the permanent dentition, FPMs, and Global DMFT were evaluated based on clinical and radiographic evaluation. The ratio of deep dentin caries (DDC) and apical lesion presence among FPMs, including treatment requirements, were analysed. Spearman rank correlation coefficient and t tests were used for statistical analysis. Results The caries prevalence was found at 61.4%, where the mean DMFT was calculated as 1.89 +/- 2.15. There was a positive correlation between DMFT values and age (r(s) = 0.27). On the other hand, there was a negative correlation between global DMFT values and age (r(s) = - 0.29). Regarding treatment needs of FPM with poor prognosis, 12.03% of the teeth needed pulpectomy, 8.93% pulpotomy, 8.93% pulp capping, and 5.3% extraction. Having higher DMFT values was correlated significantly (p < 0.01) with the presence of DDC (r(s) = 0.50) and apical lesion (r(s) = 0.34). Susceptibility to DDC and apical lesions was significantly higher at mandible than maxilla (p < 0.01). The correlation was significant between DMFT values and apical lesion presence (p < 0.01). Conclusion The ratio of FPMs with poor prognosis was found high in the study group. Treatment requirements of FPMs increased with age, and pulp interventions often took part in the majority. This study successfully concluded that higher DMFT values were correlated with the presence of DDC and apical lesion

Evaluation of Stain Susceptibility of Different CAD/CAM Blocks After Immersion in Coffee

Aim: Color stability is gaining more importance today due to majority of patients are seeking color matchingrestorations. However, there is still lack of information on staining and changes in translucency of recent CAD/CAMblock materials. The goal of the current study was to evaluate the discoloration susceptibility, translucency change,water solubility, and water sorption of different CAD/CAM materials after one-month of immersion in coffee.Material and Methods: Four CAD/CAM block materials and one conventional composite resin were examined. TheCIELab values of CAD/CAM materials were determined using a clinical spectrophotometer on black and whitebackgrounds. The color changes and translucency differences were calculated after immersion in coffee or distilledwater for one month (n=6). Water solubility and sorption were also determined according to the ISO 4049:2009 (n=6).The data were calculated by 2-way ANOVA and Tukey’s pair-wise comparisons (?=0.05).Results: Color changes of the CAD/CAM materials tested ranged from 1.5 to 7.3, and translucency reduced. Thehighest color change was observed in nanocomposite resin (7.3), whereas the lowest color change was observed infeldspathic porcelain (1.5) after storing in coffee for a month. There was no significant difference among the polymerbased CAD/CAM materials. No correlation was determined between color changes and water sorption/solubility.Conclusion: All materials except feldspar ceramic showed a discoloration exceeding the clinically acceptable thresholdlevel (2.7) after being stored in coffee for one month. The highest color change was observed in nanocomposite resinmaterial

Mechanical properties and repair bond strength of polymer-based CAD/CAM restorative materials

Information on the mechanical properties and repairability of computer-aided design/computer-aided manufacturing (CAD/CAM) blocks is scarce. Five CAD/CAM blocks with similar indications were evaluated, including four resin nanoceramics, one polymer-infiltrated ceramic network (PICN), and one feldspathic ceramic. CAD/CAM blocks were sectioned into 4 mm x 1.2 mm x 13 mm bars for flexural strength (FS), and 4 mm thick blocks were prepared for elastic modulus (EM), nanohardness (NH), and microshear bond strength (mu SBS) testing. FS of the CAD/CAM blocks was determined using a three-point bending test, whereas EM and NH values were measured using a nanoindenter. The reparability of the tested block materials was determined by the mu SBS test. One-way ANOVA was conducted for FS, EM, NH, and mu SBS followed by Tukey's pairwise comparison (alpha < 0.05). FS ranged from 115 to 207 MPa, EM from 8.21 to 44 GPa, NH from 0.76 to 7.24, and mu SBS from 24.9 to 30.6 MPa. The findings of the present study revealed that resin nanoceramic blocks exhibited higher FS values than PICN and feldspathic ceramic, and they have acceptable mechanical properties for the fabrication of single-unit restorations according to the ISO 6872:2008. Furthermore, all CAD/CAM blocks tested can be successfully repaired regarding their recommended repair protocol

Perception of Oral and Dental Health Awareness and Assessment of Dental Habits in Preclinical Dentistry Students: A Questionnaire Study

Aim: The oral and dental hygiene behaviors of patients are affected by their dentists. Although dental students attend preclinical courses in their first and second years of education, they are expected to be knowledgeable about oral and dental health due to their future position as being role models for patients. In this study, it was aimed to evaluate the oral and dental health awareness and oral health habits of preclinical dental students. Material and Methods: 127 preclinical dental students were included in this study. A questionnaire consisting of 39 questions about oral-dental health habits and knowledge levels was prepared. The results were analyzed with the SPSS 22.0 software. A p-value of smaller than 0.05 was considered statistically significant. Chi-squared and Mann-Whitney U tests were used for statistical analysis.Results: Frequency of daily tooth brushing, gingival bleeding, halitosis, toothpaste preference, satisfaction with tooth color and frequency of dental visits were found to be statistically significant. There was no significant difference between the 1st-year and 2nd-year student groups in terms of their responses to the questions (p> 0.05). A statistically significant difference was found between the male and female groups for their responses to the questions on topics such as toothpaste preference, satisfaction with the color of their teeth, frequency of dental examination, frequency of tooth cleaning and toothbrushing time (

Effect of surface treatments and universal adhesive application on the microshear bond strength of CAD/CAM materials

PURPOSE. The aim of this study was to evaluate the microshear bond strength (mu SBS) of four computer-aided design/computer-aided manufacturing (CAD/CAM) blocks repaired with composite resin using three different surface treatment protocols. MATERIALS AND METHODS. Four different CAD/CAM blocks were used in this study: (1) flexible hybrid ceramic (FHC), (2) resin nanoceramic (RNC), (c) polymer infiltrated ceramic network (PICN) and (4) feldspar ceramic (FC). All groups were further divided into four subgroups according to surface treatment: control, hydrofluoric acid etching (HF), air-borne particle abrasion with aluminum oxide (AlO), and tribochemical silica coating (TSC). After surface treatments, silane was applied to half of the specimens. Then, a silane-containing universal adhesive was applied, and specimens were repaired with a composite, Next, mu SBS test was performed. Additional specimens were examined with a contact profilometer and scanning electron microscopy. The data were analyzed with ANOVA and Tukey tests. RESULTS. The findings revealed that silane application yielded higher mu SBS values (P<.05). All surface treatments were showed a significant increase in mu SBS values compared to the control (P<.05). For FHC and RNC, the most influential treatments were AlO and TSC (P<.05). CONCLUSION. Surface treatment is mandatory when the silane is not preferred, but the best bond strength values were obtained with the combination of surface treatment and silane application. HF provides improved bond strength when the ceramic content of material increases, whereas AlO and TSC gives improved bond strength when the composite content of material increases

Efficacy of different surface treatments and universal adhesives on the microtensile bond strength of bulk-fill composite repair

The purpose of this in vitro study was to evaluate the influence of different surface treatments and aging on the microtensile bond strength (mu TBS) of bulk-fill composite resins. Bulk-fill composites (Filtek One; 3M ESPE) randomly received five different surface treatments: (1) no treatment, control, (2) 37% phosphoric acid etching (PA), (3) 9% hydrofluoric acid etching (HF), (4) air-borne particle abrasion with 50-mu m alumina particles (Al2O3), (5) tribochemical silica coating (CoJet). Following, the specimens were divided into three subgroups according to universal adhesive applied: Clearfil Universal Bond (CU; Kuraray), Prime&Bond Universal (PBU; Dentsply Sirona), or Single Bond Universal (SBU; 3M ESPE). A nanofill composite (Filtek Ultimate; 3M ESPE) was employed as a repair. Bonded specimens were stored in water for 24 h at 37 degrees C or thermal aged, then subjected to the mu TBS test. Additionally, specimens were analyzed with a contact profilometer and were evaluated with scanning electron microscopy. Control and PA treatments were showed the lowest mu TBS (p 0.05). Al2O3 and CoJet treatments generally exhibited a similar influence on mu TBS values. In addition, a correlation was found between surface roughness and bond strength (r = 0.831). CoJet resulted in significantly higher repair mu TBS values when compared to the other surface treatments. In addition, the use of silane-containing universal adhesive was increased the cohesive failure rate and maintained the repair mu TBS values after thermocycling