Periodontitis is a group of inflammatory diseases that affect the connective tissue attachment and supporting bone around the teeth. It is widely accepted that the initiation and the progression of periodontitis are dependent on the presence of virulent microorganisms capable of causing disease. Although the bacteria are initiating agents in periodontitis, the host response to the pathogenic infection is critical to disease progression. After its initiation, the disease progresses with the loss of collagen fibers and attachment to the cemental surface, apical migration of the junctional epithelium, formation of deepened periodontal pockets, and resorption of alveolar bone. If left untreated, the disease continues with progressive bone destruction, leading to tooth mobility and subsequent tooth loss. Periodontal disease afflicts over 50% of the adult population in the United States, with approximately 10% displaying severe disease concomitant with early tooth loss.
A goal of periodontal diagnostic procedure is to provide useful information to the clinician regarding the present periodontal disease type, location and severity. These findings serve as a basis for treatment planning and provide essential data during periodontal maintenance and disease monitoring phases of treatment. Traditional periodontal diagnostic parameters used clinically include probing depths, bleeding on probing, clinical attachment levels, plaque index, and radiographs assessing alveolar bone level. The strengths of these traditional tools are their ease of use, their cost-effectiveness, and that they are relatively noninvasive. Traditional diagnostic procedures are inherently limited, in that only disease history, not current disease status, can be assessed. Clinical attachment loss readings by the periodontal probe and radiographic evaluations of alveolar bone loss measure damage from past episodes of destruction and require a 2 to 3mm threshold change before a site can be identified as having experienced a significant anatomic event.
Table of Contents
1.Introduction
2.Definition and Ideal Criteria of Biomarker
3.Need for a Periodontal Diagnostic Indicator/ Uses
4. Host response in periodontal disease
5. Test to detect biomarker
6. Classification of biomarkers in periodontal diseases
1) GCF biomarkers of periodontal disease activity
2) Salivary Biomarkers of periodontal disease activity
3)Bone remodelling and bone resorption biomarkers
4) Proteonomic markers
5)Genomic markers
7.Serum diagnostics/ Marker for periodontal disease
8.Clinical applications
9. Future Directions
10. Conclusion
Objectives & Topics
This work aims to evaluate the role of various biological markers (biomarkers) in the diagnosis, monitoring, and progression assessment of periodontal diseases, moving beyond traditional clinical parameters like probing depths to molecular and biochemical diagnostics.
- Analysis of host immune responses and inflammation in periodontal disease
- Evaluation of diagnostic testing methods including bacterial culture and immunologic assays
- Categorization of biomarkers within gingival crevicular fluid, saliva, and bone metabolism
- The role of matrix metalloproteinases (MMPs) and acute-phase proteins in disease activity
Excerpt from the Book
CHAPTER 2---DEFINITION
1. A substance that is measured objectively and evaluated as an indicator of normal biologic processes, pathogenic processes or pharmacologic responses to a therapeutic intervention4.
2. It is defined as a “parameter that is objectively measured and evaluated as an indicator of normal biological or pathological processes or pharmacological response to a therapeutic intervention4.”
Many chronic conditions are the result of complex diseases. It is typical for all complex diseases that they vary in the age of onset, are linked to multiple biological pathways, and that multiple genetic and environmental factors are involved. Examples of complex diseases are rheumatoid arthritis, Crohn’s disease, and periodontitis.
On the basis of our current understanding of the complexity of periodontitis the identification of one single diagnostic marker for all forms of periodontal disease seems illusionary. Nevertheless, researchers have been searching actively for unequivocal markers of periodontitis in gingival crevice fluid to develop a simple test, to be used chair-side, to determine whether a patient suffers from periodontitis and needs therapy, as opposed to another patient who needs no intervention even though he has gingivitis5.
Summary of Chapters
1.Introduction: Describes periodontitis as an inflammatory disease and emphasizes the limitations of traditional diagnostic tools, advocating for objective biomarkers.
2.Definition and Ideal Criteria of Biomarker: Defines biomarkers in a biological context and outlines the criteria necessary for an ideal diagnostic marker.
3.Need for a Periodontal Diagnostic Indicator/ Uses: Discusses the requirements for innovative diagnostic tests to improve early disease recognition and clinical management.
4. Host response in periodontal disease: Details the roles of innate and specific immunity, and the inflammatory mechanisms involved in periodontal tissue destruction.
5. Test to detect biomarker: Reviews various laboratory and chairside methods, such as culture, microscopy, and molecular probes, used to detect periodontal pathogens.
6. Classification of biomarkers in periodontal diseases: Categorizes markers based on their source and function, including GCF, salivary, bone, proteomic, and genomic markers.
7.Serum diagnostics/ Marker for periodontal disease: Explores the use of serum antibody titers as a diagnostic approach for identifying periodontal disease status.
8.Clinical applications: Discusses the future of point-of-care diagnostics and their integration into routine dental clinical practice.
9. Future Directions: Highlights emerging possibilities in biotechnology, including genetic testing and salivary RNA profiling.
10. Conclusion: Summarizes the steady progress in developing more powerful diagnostic tools to optimize treatment predictability for practitioners.
Keywords
Periodontitis, Biomarkers, Gingival Crevicular Fluid, Salivary Diagnostics, Matrix Metalloproteinases, Inflammation, Immunologic Assays, Bone Metabolism, Periodontal Disease, Host Response, Molecular Diagnostics, Cytokines, Osteocalcin, Point-of-Care Testing, Genomic Markers
Frequently Asked Questions
What is the primary focus of this work?
The work focuses on the identification and evaluation of biomarkers for the objective diagnosis and monitoring of periodontal diseases, seeking to overcome the limitations of traditional diagnostic methods.
What are the central thematic fields covered?
The central fields include the immunopathology of periodontal disease, diagnostic methodologies, the role of specific molecules like MMPs and cytokines, and the application of proteomic and genomic research in dentistry.
What is the primary research goal?
The goal is to determine how biomarkers in fluids like gingival crevicular fluid and saliva can be used to accurately assess disease activity, patient risk profiles, and therapy outcomes.
Which scientific methods are utilized?
The text reviews various clinical and laboratory methods, including enzyme-linked immunosorbent assays (ELISA), DNA probes, polymerase chain reaction (PCR), and point-of-care test kits.
What topics are discussed in the main section?
The main sections cover host response mechanisms, the classification of various biomarkers, the role of proteases and inflammatory mediators, and techniques for collecting and measuring gingival crevicular fluid.
What are the characterizing keywords?
Key terms include Periodontitis, Biomarkers, GCF, Saliva, MMPs, Inflammation, and Osteocalcin.
How do MMPs contribute to periodontal disease progression?
MMPs are enzymes responsible for the degradation of connective tissue matrices; their over-expression and activation are directly associated with the tissue destruction seen in active periodontitis.
Why is saliva considered a useful diagnostic medium?
Saliva is considered a "mirror" of systemic and oral health that can be collected non-invasively, offering a promising, easy-to-access medium for screening disease-specific biomarkers.
What is the significance of the "PeriotronA" device?
The PeriotronA is an electronic measuring device designed for the accurate quantification of the volume of gingival crevicular fluid collected on filter paper strips.
How does cigarette smoking affect biomarker analysis?
Smoking acts as a confounder in biomarker research, as it can suppress host defense systems and significantly alter the levels of various enzymes and cytokines in saliva and GCF.
- Quote paper
- Hiroj Bagde (Author), 2014, Biomakers and the Periodontal Disease. Diagnosis and Treatment, Munich, GRIN Verlag, https://www.grin.com/document/431649
