Historically, the presence of a wide zone of attached gingiva has been considered beneficial, as the gingiva plays an important role in maintaining the periodontium in health. It provides a physical barrier to oral biofilm, dissipates masticatory forces and protects the periodontium from injury.
- 1 What is attached gingiva?
- 2 Why does attached gingiva increase age?
- 3 Is the width of the attached gingiva important?
- 4 Why Keratinized gingiva is important?
- 5 What is the function of mucogingival junction?
- 6 How is gingiva attached to supporting structures?
- 7 Why gingiva is coral pink in color?
- 8 How do you know if your attached gingiva?
- 9 Which tooth has the least amount of attached gingiva?
- 10 What is attached Keratinized gingiva?
- 11 What is the main function of Keratinized stratified squamous epithelium?
- 12 What is the function of Keratinized tissue?
- 13 Why is stratified epithelium important?
- 14 Why does skin keratinized?
- 15 What is keratin and what role does it play in keratinized epithelium?
- 16 Is keratin hydrophobic or hydrophilic?
- 17 Does keratin protect skin from UV?
- 18 What happens during the process of Keratinization?
- 19 What advantages do keratinization provide to life on land?
- 20 What are keratinocytes?
- 21 What happens to epidermal cells as they undergo keratinization?
- 22 Why is skin an important part of the integumentary system?
- 23 Why would collagen and elastin added to skin creams?
- 24 What happens to epidermal cells as they move up to the surface of the skin?
- 25 What happens to cells when they move from the epidermis to the surface of the skin quizlet?
- 26 What is the function of the papillary layer of the dermis?
What is attached gingiva?
Attached gingiva – This tissue is adjacent to the free gingiva and is keratinized and firmly attached to the bone structure. It can range from 3-12 mm in height. Free gingiva – This tissue is not attached and forms a collar around the tooth.
Why does attached gingiva increase age?
It was concluded that the mucogingival junction remains at a probably genetically predetermined location while the teeth move in an occlusal direction through adult life. In the absence of concurrent retraction of the gingival margin this results in an increase of the width of attached gingiva with advancing age.
Is the width of the attached gingiva important?
Conclusions: The width of attached gingiva is not significant to maintain periodontal health in the presence of adequate oral hygiene. However, thin gingival tissues around teeth with restorations or undergoing labial orthodontic tooth movement may be more susceptible to recession.
Why Keratinized gingiva is important?
Keratinized gingiva provides stabilization to the periodontium, protects the teeth and implants from masticatory and external trauma, and provides a barrier to inflammatory infiltrate (Paiva, 2012).
What is the function of mucogingival junction?
The mucogingival junction has a clinical importance because it is used to measure the width of attached gingiva. Attached gingiva is important because it is tightly bound to the underlying alveolar bone. It provides protection to the mucosa during functional use such as chewing.
How is gingiva attached to supporting structures?
The gingiva ends at the cervix of each tooth, surrounds it and attaches to it by a ring of specialised epithelial tissue — the junctional epithelium. This epithelial attachment provides continuity of the epithelial lining of the oral cavity with the surface of the teeth.
Why gingiva is coral pink in color?
What color is the human gingiva? It is frequently described as “coral pink” and is dependent upon the thickness of epithelium, the degree of keratinization, the magnitude of pigmentation, and the underlying vascularization1.
How do you know if your attached gingiva?
Place your probe on the outside of the tissue and measure from the gingival margin to the mucogingival junction. Now measure the sulcus or pocket depth (probing depth). Subtract the probing depth from the outside measurement of the gingiva, and you will have the width of attached gingiva.
Which tooth has the least amount of attached gingiva?
The highest percentage of gingival groove on the oral aspect was found in relation to the right upper premolars (31%), and the least was found in the right lower molars (4%).
What is attached Keratinized gingiva?
The keratinized gingival is the part of the oral mucosa which covers the gingiva and hard palate. It extends from the free gingival margin to the mucogingival junction and consists of the free gingiva as well as the attached gingiva.
What is the main function of Keratinized stratified squamous epithelium?
Protection. The stratified squamous epithelium provides protection against mechanical stress, chemical abrasions, and even radiation. The keratinized epithelium present on the surface of the skin blocks out the harmful radiation and prevents the exposure of internal tissues and organs to the radiation.
What is the function of Keratinized tissue?
Keratinized tissues are important where there is physical abrasion as well as the possibility of desiccation and water loss. Keratinized cells are specially structured to be waterproof and reduce evaporation from underlying tissues and are therefore an important part of the epidermis or external skin.
Why is stratified epithelium important?
Stratified squamous epithelium: This type of epithelium usually has protective functions, including protection against microorganisms from invading underlying tissue and/or protection against water loss. The outer layer of your skin (the epidermis) is made of stratified squamous epithelial cells.
Why does skin keratinized?
In humans, they constitute 90% of epidermal skin cells. Basal cells in the basal layer (stratum basale) of the skin are sometimes referred to as basal keratinocytes. Keratinocytes form a barrier against environmental damage by heat, UV radiation, water loss, pathogenic bacteria, fungi, parasites, and viruses.
What is keratin and what role does it play in keratinized epithelium?
keratin, fibrous structural protein of hair, nails, horn, hoofs, wool, feathers, and of the epithelial cells in the outermost layers of the skin. Keratin serves important structural and protective functions, particularly in the epithelium.
Is keratin hydrophobic or hydrophilic?
In accordance with the amino acid sequence, keratin has in its structure approx. 40% hydrophilic and 60% hydrophobic chemical complexes.
Does keratin protect skin from UV?
True or False Keratin protects the skin from the damaging effects of ultraviolet (UV) radiation? False; Melanin absorbs and dissipates the harmful UV rays that can damage the DNA of your skin cells. Keratin is a fibrous protein that helps to protect skin from abrasion.
What happens during the process of Keratinization?
Keratinization refers to the cytoplasmic events that occur in the cytoplasm of epidermal keratinocytes during their terminal differentiation. It involves the formation of keratin polypeptides and their polymerization into keratin intermediate filaments (tonofilaments).
What advantages do keratinization provide to life on land?
Scales function for protection, to seal body from environment to reduce water loss. Thick layers of keratin reduce water loss. Animal is less dependent on moist environment. Provides protection from abrasion, as reptile moves over land.
What are keratinocytes?
Keratinocytes are the most prominent cell within the epidermis. Keratinocytes are ectodermally derived and can be distinguished from melanocytes and Langerhans cells in the epidermis by their larger size, intercellular bridges, and ample cytoplasm. Keratinocytes are present in all four layers of the epidermis.
What happens to epidermal cells as they undergo keratinization?
Explain what happens to epidermal cells as they undergo keratinization? Keratinocytes thicken and develop many desmosomes and begin to harden. As a result, many layers of tough, tightly packed dead cells accumulate in the epidermis forming stratum corneum.
Why is skin an important part of the integumentary system?
The primary function of the integumentary system is to protect the inside of the body from elements in the environment—like bacteria, pollution, and UV rays from the sun. The skin and its associated structures also retain bodily fluids, eliminate waste products, and regulate the body’s temperature.
Why would collagen and elastin added to skin creams?
Why would collagen and elastin added to skin creams be unlikely to penetrate the skin–as some advertisements imply they do? The molecules in the basal layer are very large, which is very hard to penetrate the skin there. It may show a temporary effect on the surface, but not a permanent effect.
What happens to epidermal cells as they move up to the surface of the skin?
As these cells move further towards the surface of the skin, they get bigger and flatter and adhere together, and then eventually become dehydrated and die. This process results in the cells fusing together into layers of tough, durable material, which continue to migrate up to the surface of the skin.
What happens to cells when they move from the epidermis to the surface of the skin quizlet?
What happens to cells when they move from the epidermis to the surfaces of the skin? (they obtain more nutrients, they divide more, they die, they become dermal cells.)
What is the function of the papillary layer of the dermis?
The papillary layer contains blood vessels to help regulate body temperature while the reticular layer contains hair follicles, nerve endings, and sweat glands. Both layers have intertwined collagen and elastin fibers to protect skin from impact and prevent damage.