The natural barrier that develops around the teeth and dental implants to protect the alveolar bone from disease and infection is known as the biologic width. As such, biologic width is vital for the preservation of periodontal health and removal of irritation that could damage the periodontium.
How many mm is biological width?
Biologic width varies from person to person and can range anywhere from . 75 to 4.3 millimeters, though the average biologic width in most humans is about 2 mm. Biologic width is important for a variety of reasons.
What is biological width in implants?
The biological width around implant is a 3-4mm distance from the top of the peri-implant mucosa to the first bone-to-implant contact or the stabilized top of the adjacent bone, consisting of sulcular epithelium, junctional epithelium and fibrous connective tissue between the epithelium and the first bone-to-implant …
How much is biological width?
The biologic width is unique to every patient and can range from 0.75-4.3 mm. Based on a 1961 paper by Gargiulo, the mean biologic width at the time was 2.04 mm. From this, 1.07 mm is made up of connective tissue attachment and another 0.97 mm is occupied by the junctional epithelium.
What happens when you violate the BIoloGICAl width?
SIGnS of vIolATIon of BIoloGICAl wIDTH The signs of biological width violation are: Chronic progressive gingival inflammation around the restoration, bleeding on probing, localized gingival hyperplasia with minimal bone loss, gingival recession, pocket formation, clinical attachment loss, and alveolar bone loss.
What happens if you invade biologic width?
Biologic width invasion may cause injuries to periodontal tissues, as a means of maintaining its physiological dimensions, resulting in chronic inflammation of the soft tissues around the restoration, bleeding on probing, gingival hyperplasia, gingival recession, periodontal pocket, with loss of clinical insertion and …
What is the width of attached gingiva?
 The width of attached gingiva varies in different areas of the mouth and have been given a range of 1–9 mm, 1–4 mm, 0–g5 mm.  In the present study, the range of the mean width of attached gingiva varied from 1 mm to 4 mm.
What is ferrule effect in dentistry?
What Is the Ferrule Effect? According to Colgate, this phrase “refers to the need to have several millimeters of sound tooth structure left above the bone (alveolar bone) to decrease the risk of a tooth fracturing after certain procedures that require a crown, such as a root canal.”
How do you measure biologic width?
The biologic width can be identified by probing under local anesthesia to the bone level (referred to as “sounding to bone”) and subtracting the sulcus depth from the resulting measurement. If this distance is less than 2 mm at one or more locations, a diagnosis of biologic width violation can be confirmed.
What is probe depth?
The distance measured from the base of the pocket to the most apical point on the gingival margin. It dictates the patient’s ability to maintain optimal plaque control.
What is bone sounding in perio?
The process of probing anaesthetized tissue with a periodontal probe to establish the level of the underlying alveolar bone.
Who gave the term biologic width?
Walter Cohen for first coining the term in 1962. This term was based on the work of Gargiulo et al. (1961), who described the dimensions and relationship of the dentogingival junction from measurements made from 30 human cadaver jaws but did not relate them to any clinical applications in dentistry.
What is a crown lengthening procedure?
Crown lengthening is a procedure that is designed to reshape your gums at the base of the affected tooth in order to expose more of the tooth’s surface; and, if deemed necessary, to adjust the tooth’s bone level so that the height or size of the visible portion of the tooth can be extended so that the new restoration …
How long does a provisional crown or bridge normally last?
How Long Does a Temporary Crown Last? A temporary dental crown is designed for temporary use, which, in normal cases, is 2 to 3 weeks. You only need to wear them until your permanent dental crown is ready and can be fitted to your teeth.
Which of the following needs to be evident in order to make a diagnosis of periodontitis?
The diagnosis of periodontitis is defined with the clinical parameters: probing depth, clinical attachment level and bleeding upon probing.
What is severe gum disease called?
In its more serious form, called periodontitis, the gums can pull away from the tooth, bone can be lost, and the teeth may loosen or even fall out. Periodontal disease is mostly seen in adults. Periodontal disease and tooth decay are the two biggest threats to dental health.
What is Transgingival probing?
[2,7] Transgingival probing is the procedure in which tip of the probe makes direct contact with the bone when the probe is forced under local anesthesia through the gingiva.
What is Dentogingival unit?
The dentogingival unit (DGU) has been described as a functional unit composed of the epithelial attachment and connective tissue attachment of the gingiva – both of which afford biological protection (1).
How do you measure clinical width of attached gingiva?
What is the adequate attached gingiva?
An adequate width of attached gingiva prevents plaque formation and soft-tissue recession. Among various techniques for augmenting width of attached gingiva, modified apically repositioned flap (MARF) is a simple and easy procedure that does not require a second surgical site. It is less time-consuming.
How do you increase the width of an attached gingiva?
A variety of surgical techniques has been introduced to increase the width of AG. The most commonly documented techniques are augmentation using free gingival grafts, connective tissue gingival grafts, and apically repositioned flap.
How many MM is a ferrule?
Therefore, at least 4.5 mm of supra-alveolar tooth structure may be required to provide an effective ferrule.
Why ferrule is required?
Ferrules greatly reduce the contact resistance between the wire and connector, and even help cut down on the oxidation in the strands because of the lack of air space between them.
What is ferrule height?
A Ferrule should have a height of 1.5 to 2 mm to give fracture resistance to endodontically treated teeth. It is important to save maximum coronal tooth and a butt-joint margin between the core and tooth should be used to achieve minimal taper.
What are normal probing depths?
Under 2mm deep a pocket is considered healthy, while 4mm or deeper is generally considered unhealthy.