Tooth Mobility, Periodontal Ligament Space, and the Alveolus During Periodontal Health, Disease, and Disuse PDF Download
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Author: Atriya Salamati Publisher: ISBN: Category : Languages : en Pages : 250
Book Description
Teeth move during mastication and this mobility is structurally governed by the periodontium (including PDL and alveolar bone) supporting the teeth and functionally by the forces that are generated during mastication and transferred to the teeth via the masticatory muscles. The extent of this mobility is clinically used to determine the prognosis for teeth. However, the range of tooth movement and its direction under functional loads are largely unknown for either periodontal health, disease, or disuse. The objective of this study was to investigate in vivo tooth mobility during mastication and masticatory muscle stimulation in pigs and its relationship to the periodontal ligament (PDL) space. A periodontal disease model was created and these diseased pigs were compared with healthy controls. However, it was not possible to create a pig disuse model, so instead quality of the alveolar bone supporting the molar teeth was assessed in a rabbit disuse model. The assessment of magnitude and direction of mobility of molar teeth during mastication and masticatory muscle stimulation utilized ultrasound signaling in the form of small implantable piezoelectric transducers placed inside and around the maxillary molars of young pigs. Periodontal disease was induced over 8-week period using silk ligatures with a cocktail of four bacteria. μCT images were used to quantify the PDL space around the molars and histology was used to observe the general organization and pattern of the PDL fibers during health and disease. μCT images were also used to assess the alveolar bone density of the molar bearing region of the alveolus during disuse conditions in rabbits. Tooth mobility ranged from 20-322μm for both mastication and masseter stimulation. Mobility did not differ between healthy and diseased pigs. PDL space width measurements were in the range of 116-1690μm around the root circumference and at the furcation locations and did not differ for health and disease. The PDL space at the root’s apex, was larger ranging from 329-1,833μm and was greater in diseased teeth. These results show that functional tooth mobility caused by masticatory muscle contraction is extensive, approximating the entire periodontal space especially at the furcation. The molar typically showed intrusive and lateral (either buccal or palatal) movements during mastication. The intrusive movements appeared to be limited by the height of the PDL space at the furcation of the molars. Although it was not possible to characterize the functional tooth mobility during disuse conditions, bone density was significantly reduced (P
Author: Atriya Salamati Publisher: ISBN: Category : Languages : en Pages : 250
Book Description
Teeth move during mastication and this mobility is structurally governed by the periodontium (including PDL and alveolar bone) supporting the teeth and functionally by the forces that are generated during mastication and transferred to the teeth via the masticatory muscles. The extent of this mobility is clinically used to determine the prognosis for teeth. However, the range of tooth movement and its direction under functional loads are largely unknown for either periodontal health, disease, or disuse. The objective of this study was to investigate in vivo tooth mobility during mastication and masticatory muscle stimulation in pigs and its relationship to the periodontal ligament (PDL) space. A periodontal disease model was created and these diseased pigs were compared with healthy controls. However, it was not possible to create a pig disuse model, so instead quality of the alveolar bone supporting the molar teeth was assessed in a rabbit disuse model. The assessment of magnitude and direction of mobility of molar teeth during mastication and masticatory muscle stimulation utilized ultrasound signaling in the form of small implantable piezoelectric transducers placed inside and around the maxillary molars of young pigs. Periodontal disease was induced over 8-week period using silk ligatures with a cocktail of four bacteria. μCT images were used to quantify the PDL space around the molars and histology was used to observe the general organization and pattern of the PDL fibers during health and disease. μCT images were also used to assess the alveolar bone density of the molar bearing region of the alveolus during disuse conditions in rabbits. Tooth mobility ranged from 20-322μm for both mastication and masseter stimulation. Mobility did not differ between healthy and diseased pigs. PDL space width measurements were in the range of 116-1690μm around the root circumference and at the furcation locations and did not differ for health and disease. The PDL space at the root’s apex, was larger ranging from 329-1,833μm and was greater in diseased teeth. These results show that functional tooth mobility caused by masticatory muscle contraction is extensive, approximating the entire periodontal space especially at the furcation. The molar typically showed intrusive and lateral (either buccal or palatal) movements during mastication. The intrusive movements appeared to be limited by the height of the PDL space at the furcation of the molars. Although it was not possible to characterize the functional tooth mobility during disuse conditions, bone density was significantly reduced (P
Author: Peter A. Heasman Publisher: Oxford University Press, USA ISBN: Category : Medical Languages : en Pages : 396
Book Description
This book explores fully the interrelationships between the periodontium in both health and disease, and orthodontics. The authors have examined exhaustively the common ground on which the orthodontist and periodontist are often called upon to meet and collaborate on cases that demand multi-disciplinary care.
Author: Michael G. Newman Publisher: Elsevier Health Sciences ISBN: 0323878881 Category : Medical Languages : en Pages : 1877
Book Description
**Selected for Doody’s Core Titles® 2024 in Dentistry** Learn and master a range of clinical techniques and achieve therapeutic goals with Newman and Carranza’s Clinical Periodontology and Implantology, 14th Edition! Unmatched for its comprehensive approach, this resource provides detailed, up-to-date information on the etiology and pathogenesis of periodontal disease. Basic and advanced evidence-based information on the various treatment modalities employed in periodontics and implantology is presented in an easy-to-read format, with callout boxes throughout the text highlighting the clinical relevance of foundational basic science information. Full-color photos and radiographic images depict periodontal conditions and procedures, and the Atlas of Periodontal Pathology is one of the most comprehensive ever compiled in a periodontal textbook. Written by a team of leading experts led by Michael G. Newman, this text not only demonstrates how to perform periodontal procedures but explains the evidence supporting each treatment and provides knowledge on how to achieve the best possible outcomes of periodontal therapy and implant treatment. An eBook version is included with print purchase, providing access to all the text, figures, and references, plus the ability to search, customize content, make notes and highlights, and have content read aloud. The eBook version included with print purchase also includes Periopixel 3D color illustrations, a periodontal classification calculator and interactive learning tool, review questions, case studies, videos, 3D animations, and more! This edition features new chapters on Precision Medicine, Pocket Reduction Therapy, Periodontal Referral, and Digital Implant Workflows, as well as an updated glossary of terms linked to the eBook. It also features first-of-its-kind content on the effects of COVID-19 on treatment from key opinion leaders in this area. Case studies reflect the new format of the Integrated National Board Dental Exam (INBDE). Full-color photos, illustrations, radiographs, animations, simulations, and videos demonstrate how to perform periodontal and implant procedures. Current information on clinical techniques in periodontology and the latest advances in basic science. Evidence-based treatment planning provides knowledge on how to achieve the best possible outcomes of periodontal therapy and implant treatment. Extensive color atlas of periodontal pathology Internationally known experts contribute chapters on their areas of specialty. An eBook version is included with print purchase, providing access to all the text, figures, and references, plus the ability to search, customize content, make notes and highlights, and have content read aloud.
Author: Atriya Salamati
Author: Atriya Salamati
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Author: Michael G. Newman