Objective: The prevalence of musculoskeletal disorders (MSDs) among dentists is high and adversely affects the quality of life. In this study, we aimed to evaluate musculoskeletal complaints, working postures, and the risk of MSDs among dentistry students across different departments. Methods: 180 dentistry students were divided into six groups according to their departments. For evaluation of the musculoskeletal complaints, we used the standardized Nordic musculoskeletal disorders questionnaire. The working postures and the potentiality of MSDs were evaluated using the ‘Rapid Upper Limb Assessment’ (RULA). Results: We found that 92.8% of the students had musculoskeletal pain during the last 12 months, and the highest prevalence of symptoms was reported for the neck (68.3%) and the upper back (62.2%). The mean RULA score of the students was 5.02 ± 1.31, indicating a high risk of MSDs. The highest RULA mean score was in the pedodontics group. Conclusion: Our study found a high prevalence of musculoskeletal complaints and high RULA scores among all the dentistry students. Therefore, ergonomic solutions should be developed to regulate their working postures according to the relevant department to prevent future disorders and if necessary, students should encourage to seek professional medical help.

Purpose: Periodontal diseases (PDs) are considered a risk factor for some systemic conditions such as cardiovascular diseases, diabetes, and adverse pregnancy outcomes. Hyperemesis gravidarum (HG) is a common health problem, and inflammation is claimed to play a vital role in its etiopathogenesis. Here, we aimed for the first time to demonstrate the relationship between PD and HG. Materials and Methods: A total of 30 pregnant with HG and 30 healthy pregnant between the age group of 18 and 40 years were enrolled in the study. HG was diagnosed if the followings were present: at least one-positive ketonuria, >5% weight loss, and severe vomiting, which is >2 times a day. Periodontal status was evaluated by the plaque index (PI), gingival index (GI), probing pocket depth (PPD), and bleeding on probing index (BOPI), and these parameters were recorded. All measurements were performed at 6 points of each tooth (mesiobuccal, midbuccal, distobuccal, mesiolingual, midlingual, and distolingual) and compared between the groups. Results: Mean age was 29 ± 3 in HG and 28 ± 4 in the control group. There was no difference between two groups according to the age (P = 0.421), gravida (0.524), and parity, (P = 0.54). PI, GI, PPD, and BOPI were significantly higher in HG group as compared to controls. Conclusions: Gingival inflammation is more common in patients with HG, and it is possibly associated with insufficient tooth brushing because it may stimulate the gagging reflex and vomiting. Since there could be a vicious cycle between PD and HG, periodontal preventive programs are crucial for pregnant women with HG.

Tr en AMAÇ: Bu çalışmanın amacı sistemik sağlık üzerinde etkisi kanıtlanmış olan periodontal durumun infertil kadınlarda uygulanan in vitro fertilizasyon tedavisi sonuçları üzerindeki etkisini değerlendirmektir. GEREÇ VE YÖNTEM: İnfertilite tanısı konmuş kadın hastalardan sosyodemografik veriler bir anket yardımıyla toplanmıştır. Kan testi gününde plak indeksi, gingival indeks, cep derinliği, sondalamada kanama indeksi ölçümleri yapılmıştır. Buna göre; sağlıklı, gingivitisli ve periodontitisli olarak sınıflandırılan hastalar ile kullanılan human chorionic hormon gonadotropin (hCG) dozu, östradiol ve progesteron seviyeleri, transfer edilen embriyo sayıları, oosit sayıları ve gebelik sonuçları karşılaştırılmıştır. Çalışmada, tek yönlü ANOVA, Tukey HDS, Tampane’s T2, Kruskal-Wallis, Mann-Whitney U ve ki-kare testleri kullanılmıştır. BULGULAR: Gruplar arasında oosit sayıları, transfer edilen embriyo sayıları ve gebelik sonuçları açısından bir farklılık gözlenmemiştir. Gruplar arasında hCG günü östradiol seviyesi açısından bir farklılık gözlenmemesine karşın hCG günü progesteron seviyesi periodontitis grubunda sağlıklı ve gingivitisli gruba göre anlamlı şekilde yüksek bulunmuştur. SONUÇ: Periodontitis grubunda gözlenen progesteron seviyesindeki yükselme IVF sonucunu etkileyebilecek olan eşik değerin altındadır. Periodontal durumun infertilite tedavisi üzerindeki etki mekanizmasının belirlenmesi için geniş ölçekli ve uzun vadeli çalışmalara ihtiyaç duyulmaktadır. OBJECTIVE: This study aims to evaluate the effect of periodontal status, which has been proven to have effects on systemic health, on the outcomes of in vitro fertilization (IVF) treatment which is applied to infertile women. MATERIAL AND METHODS: Sociodemographic data have been collected from female patients diagnosed with infertility through a questionnaire. On the day of the blood test, plaque index, gingival index, probing depth and bleeding index on probing were measured. Recruited patients were classified into the healthy, gingivitis, and periodontitis groups according to the aforementioned criteria. These groups were compared with respect to human chorionic gonadotropin (hCG) dosage, estradiol and progesterone levels, the number of oocyte and embryos transferred, and pregnancy outcomes. One-way ANOVA, Tukey HDS, Tampane’s T2, Kruskal-Wallis, Mann-Whitney U, and chi-square tests were used in this study. RESULTS: The three groups were statistically similar in the aspect of retrieved oocytes, transferred embryos and pregnancy outcomes. Although three groups had statistically similar in terms of estradiol levels on the day of hCG administration, progesterone levels were significantly higher in the periodontitis group compared to healthy and gingivitis groups. CONCLUSIONS: This elevation in progesterone levels observed in the periodontitis group is below the threshold level which could affect the IVF outcomes. Large scale and long-term studies are needed to clarify the effects of periodontal status on IVF outcomes.

To assess whether plaque-disclosing agents (PDA) improve self-performed mechanical plaque removal and gingival health compared with standard instruction al

Aim: Air powder polishing (APP) can cause roughness on composite surfaces, and consequently the color change that occurs over time affects the aesthetic negatively. Here, we aim to investigate the effect of repolishing on the roughness and discoloration of resin composites after APP to avoid its negative effects for the first time. Methodology: A total of 39 composite discs were randomly allocated into three groups: Group I: Control (n = 13), Group II: Air Powder Polished (n = 13), and Group III: Air Powder Polished + Re-polished (n = 13). Color and surface roughness of the discs were measured before and after immersion in coffee for 1 week. Color was measured using a colorimeter (CR-400, Konica Minolta), and roughness was measured using a surface roughness analyzer (SJ-400, Mitutoyo, Japan). Results: All specimens in the groups, except those in Group III, showed significant changes in roughness, and all materials showed significant color changes after immersion in the coffee relative to the baseline. There was no statistically significant difference between the groups in terms of roughness and color. Conclusion: In this study, we showed that repolishing after APP does not significantly improve the color stability and roughness of the composite restorations. How to cite this article: Altaş N, Sağır K, Aydınoğlu A, Gözetici Çil B, Keleşoğlu E, Sağır K, Hazar Yoruç AB. Effect of repolishing on the surface roughness and color stability of air-abraded resin composites. Int Dent Res 2022;12(3):137-42. https://doi.org/10.5577/intdentres.2022.vol12.no3.5 Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.