The free gingival margin is the interface between the sulcular epithelium and the epithelium of the oral cavity. This interface exists at the most coronal point of the gingiva, otherwise known as the crest of the marginal gingiva.
Gingival margin
The gingival margin(F) is the most coronal point of the gingiva, depicted as the zenith of the pink hill in this diagram. To the left lies the sulcular epithelium within the gingival sulcus (G), and to the right lies the oral epithelium (E).
Because the short part of gingiva existing above the height of the underlying alveolar process of maxilla, known as the free gingiva, is not bound down to the periosteum that envelops the bone, it is moveable. However, due to the presence of gingival fibers such as the dentogingival and circular fibers, the free gingiva remains pulled up against the surface of the tooth unless being pushed away by, for example, a periodontal probe or the bristles of a toothbrush.
Gingival retraction or gingival recession is when there is lateral movement of the gingival margin away from the tooth surface.[1][2] It is usually termed gingival retraction as an intentional procedure, and in such cases it is performed by mechanical, chemical, or electrical means in order to perform certain dental surgery procedures. It is usually referred to as gingival recession as a spontaneous or non-intentional presentation, and in such cases it may indicate an underlying inflammation, a pocket formation or displacement of the marginal gingivae away from the tooth by mechanical, chemical, or surgical means.[1] It may expose the roots of the teeth, similarly to gingival recession.
Gingival retractionedit
Gingival retraction pasteedit
Use of gingival retraction paste has been demonstrated to be most successful in providing a dry field and imposing minimal injury on the surrounding periodontium. It has a decreased ability to retract gingival tissues however, in comparison to a retraction cord.
Gingival retraction cordedit
A retraction cord, although more damaging to the gingival tissues, has proven to displace gingival tissues more effectively and is therefore recommended in instances where thick periodontium is present. Without any chemical additions, such as epinephrine or sulphate compounds, the cord on its own does not produce haemostasis at the sulcus.[3]
Referencesedit
^ ab"Gingival retraction". Mondofacto medical dictionary. 5 March 2000.
^American Dental Association. (2007). (PDF). Journal of the American Dental Association. 138 (10): 1404. doi:10.14219/jada.archive.2007.0058. PMID 17908856. Archived from the original (PDF) on 2010-09-17.
^Huang C, Somar M, Li K, Mohadeb JV (April 2017). "Efficiency of Cordless Versus Cord Techniques of Gingival Retraction: A Systematic Review". Journal of Prosthodontics. 26 (3): 177–185. doi:10.1111/jopr.12352. PMID 26378615. S2CID 4303860.
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gingival, margin, free, gingival, margin, interface, between, sulcular, epithelium, epithelium, oral, cavity, this, interface, exists, most, coronal, point, gingiva, otherwise, known, crest, marginal, gingiva, gingival, margin, most, coronal, point, gingiva, d. The free gingival margin is the interface between the sulcular epithelium and the epithelium of the oral cavity This interface exists at the most coronal point of the gingiva otherwise known as the crest of the marginal gingiva Gingival marginThe gingival margin F is the most coronal point of the gingiva depicted as the zenith of the pink hill in this diagram To the left lies the sulcular epithelium within the gingival sulcus G and to the right lies the oral epithelium E DetailsIdentifiersLatinmargo gingivalisTA98A05 1 01 109TA22791FMA75112Anatomical terminology edit on Wikidata Because the short part of gingiva existing above the height of the underlying alveolar process of maxilla known as the free gingiva is not bound down to the periosteum that envelops the bone it is moveable However due to the presence of gingival fibers such as the dentogingival and circular fibers the free gingiva remains pulled up against the surface of the tooth unless being pushed away by for example a periodontal probe or the bristles of a toothbrush Contents 1 Gingival retraction or recession 1 1 Gingival retraction 1 1 1 Gingival retraction paste 1 1 2 Gingival retraction cord 2 ReferencesGingival retraction or recession editGingival retraction or gingival recession is when there is lateral movement of the gingival margin away from the tooth surface 1 2 It is usually termed gingival retraction as an intentional procedure and in such cases it is performed by mechanical chemical or electrical means in order to perform certain dental surgery procedures It is usually referred to as gingival recession as a spontaneous or non intentional presentation and in such cases it may indicate an underlying inflammation a pocket formation or displacement of the marginal gingivae away from the tooth by mechanical chemical or surgical means 1 It may expose the roots of the teeth similarly to gingival recession Gingival retraction edit Gingival retraction paste edit Use of gingival retraction paste has been demonstrated to be most successful in providing a dry field and imposing minimal injury on the surrounding periodontium It has a decreased ability to retract gingival tissues however in comparison to a retraction cord Gingival retraction cord edit A retraction cord although more damaging to the gingival tissues has proven to displace gingival tissues more effectively and is therefore recommended in instances where thick periodontium is present Without any chemical additions such as epinephrine or sulphate compounds the cord on its own does not produce haemostasis at the sulcus 3 References edit a b Gingival retraction Mondofacto medical dictionary 5 March 2000 American Dental Association 2007 Gingival Recession Causes and Treatment PDF Journal of the American Dental Association 138 10 1404 doi 10 14219 jada archive 2007 0058 PMID 17908856 Archived from the original PDF on 2010 09 17 Huang C Somar M Li K Mohadeb JV April 2017 Efficiency of Cordless Versus Cord Techniques of Gingival Retraction A Systematic Review Journal of Prosthodontics 26 3 177 185 doi 10 1111 jopr 12352 PMID 26378615 S2CID 4303860 nbsp This dentistry article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Gingival margin amp oldid 1219903073, wikipedia, wiki, book, books, library,
