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BMC Oral Health
January 2025
Department of Endodontics, Shaanxi Provincial People's Hospital, Xi'an, China.
Background: This study aims to investigate the prevalence and morphology of middle mesial canal (MMC) in mandibular first molar (M1M) among a Northwestern Chinese population, and to analyze their relationship with anatomical aspects of the mesial root.
Methods: Cone beam computed tomography (CBCT) was utilized to evaluate 898 M1Ms and assess the incidence and morphology of MMC. The following parameters for M1M with or without MMC were obtained: the vertical distance between the first appearance of MMC and canal orifices (D), the distance between mesiobuccal (MB) and mesiolingual (ML) canals (D1), the buccolingual width(L1) and mesiodistal width (L2) of mesial roots, and the flatness degree(L1/L2) of mesial roots.
J Contemp Dent Pract
October 2024
Department of Prosthetic Dental Science, College of Dentistry, Jazan University, Jazan, Saudi Arabia, Phone: +00966550599553, e-mail: Orcid: https://orcid.org/0000-0002-9623-261X.
Aim: This study assessed the prevalence and etiological factors of maxillary midline diastema (MMD) in students attending different colleges and universities in Al-Hodeidah governorate, Yemen.
Participants And Methods: A total of 1,661 participants from different universities in Al-Hodeidah governorate were assessed, analyzed, and screened for the presence or absence of MMD. Only 246 had positive MMD and were divided five age-groups.
J Dent Sci
January 2025
Department of Dentistry, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taipei, Taiwan.
Background/purpose: Our previous study found that 21.9 %, 13.6 %, 7.
View Article and Find Full Text PDFJ Dent Sci
January 2025
Department of Periodontology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Research Center of Dental Materials and Oral Tissue Regeneration & Shandong Provincial Clinical Research Center for Oral Diseases, Jinan, China.
Background/purpose: Progesterone (PG) is sex steroid hormone that commonly used to control menopausal symptoms, but its exact role in periodontitis remains unclear. This study aimed to investigate the effects of PG on periodontitis in perimenopausal women and in an experimental rat model.
Materials And Methods: Total 412 perimenopausal women with periodontitis and a history of PG deficiency-induced uterine dysfunctional bleeding were enrolled, among which 209 women had been treated with PG.
J Dent Sci
January 2025
School of Dentistry, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.
Background/purpose: There is no study available addressing the relationship between orbital volume (OV) and skeletal patterns. The purpose of this study was to investigate the correlations between the OV and patient's characteristics (sex, age, height, and skeletal patterns) of Taiwanese adults.
Materials And Methods: Cone-beam computed tomography images of 94 individuals (men: 47; women: 47) were analyzed to measure their OV and maxillary dimensions.
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