tweet. share. Biologic width describes the combined heights of the connective tissue and epithelial attachments to a tooth. The dimensions of the attachment were described in 1961 by Garguilo, Wentz and Orban in a classic article on cadavers.
Alternatively, the 'ferrule effect' may be defined as the effect whereby cementing a 'ferrule', or 360 degree metal (or porcelain) band, around a tooth, prevents independent flexure of tooth and/or core and/or post structures that are located within the supra-ferrule-margin volume of the tooth, such that if a force is
If a tooth fracture extends to the level of the bone, it must be erupted 4 mm. The first 2.5 mm moves the fracture margin far enough away from the bone to prevent a biologic width problem. The other 1.5 mm provides the proper amount of ferrule for adequate resistance form of the crown preparation.
Anesthetics are used during the crown lengthening procedure to keep the patient from feeling anything in the area. Once the anesthesia wears off after surgery, there should be little or no discomfort due to the use of a special long-term anesthetic called Marcaine. Slight weakness or chills may also be felt.
Crown lengthening is necessary when a dentist identifies decay in the tooth they cannot easily access. This decay is usually hidden deep beneath the gums, and no matter what methods they use, they cannot properly access the decay without performing a crown lengthening procedure.
Repair teeth – Whether it's from gum disease or trauma (like a bad fall), if your teeth are damaged below the gum line, Dr. Beck will perform a crown lengthening to expose the damaged tooth to not only repair the damage, but to also attach a crown on top.
There are many factors that determine crown lengthening cost. Some of them include your location, number of teeth involved, experience of the dentist and so on. Ideally, you should be prepared to spend between $1000 and $4000 for the procedure. If it is medically warranted, your insurance may cover part of the cost.
Which of the following best describes the shape of supragingival calculus deposits? Subgingival calculus deposits are always generalized throughout the mouth. Supragingival deposits are always localized to areas that are difficult to clean.
A Composite Filling is a tooth-colored plastic and glass mixture used to restore decayed/carious teeth. Composites are also used for cosmetic improvements of the smile by changing the color of the teeth or reshaping disfigured teeth.
Compared to composite resin, this type of filling is more affordable and offers longer-lasting results. When properly cared for, an amalgam filling can last up to 15 years. Because of the metal alloy used, amalgam fillings offer stronger resistance to damage, making then a superior choice for larger areas of decay.
There are two types of gingiva that are clearly recognizable and they are known as the marginal gingiva that is mobile and the attached gingiva.
Healthy gingiva is described as 'salmon' or 'coral pink'. It may be pigmented, which reflects the ethnic origin of the subject. The gingiva is firm in consistency and firmly attached to the underlying alveolar bone. The surface of gingiva is keratinised and may exhibit an orange peel appearance, called 'stippling'.
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.
The periodontium is a complex structure composed of the gingiva, periodontal ligament (PDL), cementum, and alveolar bone (Figure 11-1). The primary functions of the periodontium are to allow the tooth to be attached to the bone and to provide a barrier for the underlying structures from the oral microflora.
The sulcular epithelium is that epithelium which lines the gingival sulcus. It is apically bounded by the junctional epithelium and meets the epithelium of the oral cavity at the height of the free gingival margin. The sulcular epithelium is nonkeratinized.
Gingiva is a tissue described as the masticatory mucosa lining the alveolar bone which surrounds the cervical portion of the teeth. Gingival tissues provide a seal around the teeth through the junctional epithelium and the epithelial attachment to resist mechanical trauma and to defend against microorganisms.
[14] The width of attached gingiva varies in different areas of the mouth and have been given a range of 1–9 mm,[15] 1–4 mm,[16] 0–g5 mm. [17] In the present study, the range of the mean width of attached gingiva varied from 1 mm to 4 mm.
Severity is based on the amount of clinical attachment loss (CAL) and is designated as slight (1-2 mm CAL), moderate (3-4 mm CAL) or severe (> 5 mm CAL). Refractory periodontitis refers to continued attachment loss in spite of adequate treatment and proper oral hygiene.
