Severe damage to the periodontium requires stabilization and restoration of masticatory function. This case report examines the therapeutic planning process for a patient with generalized periodontitis (stage IV, grade C). The main dilemma in this case was whether periodontally compromised natural teeth should be retained during the full-mouth rehabilitation or extracted. Retention of natural teeth usually is associated with better oral health-related quality of life. This article presents challenging treatment considerations and describes why extraction of periodontally compromised natural teeth is sometimes a viable treatment option.
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Environ Toxicol Pharmacol
January 2025
Department of Orthodontics, University Hospital Bonn, Medical Faculty, Welschnonnenstr. 17, 53111, Bonn, Germany. Electronic address:
The pesticide Dichlorodiphenyltrichloroethane (DDT) and its degradation by-products (Dichlorodiphenyldichloroethane-DDD and dichlorodiphenyldichloroethylene-DDE) are health concerns. This study aimed to investigate the impact of multigenerational exposure to traces of DDD and DDE on odontogenesis Wistar rats were allocated in 4 groups over 2 generations (F1 and F2). Water was provided ad libitum throughout the animal's life groups: control - natural water; DDD - 0.
View Article and Find Full Text PDFPublic Health
January 2025
The Second Affiliated Hospital of Soochow University, Suzhou Medical College of Soochow University, Suzhou, Jiangsu 215004, PR China. Electronic address:
Objectives: This study aimed to develop and validate a risk prediction model for frailty in elderly using a nationally representative longitudinal survey database.
Study Design: Longitudinal study based on public databases.
Methods: Three continuous cohorts of elderly aged 65 years or older from the Chinese Longitudinal Healthy Longevity Survey, with the 2008-2018 cohort as the development cohort.
J Contemp Dent Pract
October 2024
Department of Prosthodontics, Dr. D.Y. Patil Dental College & Hospital, Dr. D.Y. Patil Vidyapeeth, Pune, Maharashtra, India.
Aim: The current study aimed to assess the oropharyngeal space using cone-beam computed tomography (CBCT) and its effect on airway volume both before and after denture placement.
Materials And Methods: For this investigation, a total of 15 individuals with fully edentulous upper and lower ridges, ranging in age from 40 to 70, were taken into consideration. A recording of the pulmonary function test was made both prior to and following full denture recovery.
BMC Oral Health
January 2025
Faculty of dentistry, Ain Shams University, Cairo, Egypt.
Objective: The purpose of this study was to evaluate the effect of different preparation depths (0, 2 and 4 mm) of different restoration designs (classic endocrown design versus overlay design) on marginal adaptation of restorations fabricated of two different restorative materials (lithium disilicate and PEEK).
Materials And Methods: Sixty mandibular natural molars were collected as abutments for the restorations of this study, and grouped in three main groups of different cavity depths (0, 2 and 4). Each group was divided into two subgroups according to material of fabrication to (L) for lithium disilicate (IPS emax CAD, Ivoclar vivadent, Switzarland) and (P) for PEEK (Bio-hpp, Bredent, Germany).
Naturwissenschaften
January 2025
Institute of Bioengineering and Biosciences, School of Biological Sciences, Georgia Institute of Technology, Atlanta, GA, USA.
While most dentate non-mammalian vertebrates possess simple conical teeth, some demonstrate complex tooth shapes. Lake Malawi cichlid fishes are an extreme example of this, exhibiting a myriad of tooth shapes driven by an ecologically derived rapid evolution of closely related but distinct species. Tooth shape in mammals is generally considered to be established by signaling centers called primary and secondary enamel knots, which are not believed to be present in non-mammalian vertebrates.
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