What is atrophy of edentulous alveolar ridge?

Abstract. In cases of advanced alveolar ridge atrophy, when the bone available for endosseous implants is not sufficient, endosseous implants are combined with augmentation of the alveolar ridge by means of autologous bone transplants.

What is alveolar atrophy?

al·ve·o·lar at·ro·phy. (al-vēŏ-lăr atrŏ-fē) Loss or diminution of supportive alveolar bone due to loss of teeth or to function, trauma, reduced blood supply, or unknown cause.

What is alveolar ridge defect?

When teeth are extracted, a certain amount of bone loss or resorption occurs, usually about 30-60%. An alveolar defect can be classified as the loss of labial or buccal cortical or medullary bone. In some cases, both exist.

What is Atwood classification?

classification. According to Atwood’s : (JPD 1971 Vol.26)  Order 1 : Pre-extraction  Order 2 : Post- extraction  Order 3 : High, well rounded  Order 4 : Knife-edge  Order 5 : Low, well rounded  Order 6 : Depressed Pre extraction Post ext High well rounded Knife edge Low well rounded Depressed.

Where is the alveolar ridge?

The alveolar ridge is a small protuberance just behind the upper front teeth that can easily be felt with the tongue.

What is atrophy?

Atrophy is the progressive degeneration or shrinkage of muscle or nerve tissue. In multiple sclerosis (MS), two types of atrophy are common: muscle atrophy (due to disuse of specific muscles) and brain or cerebral atrophy (due to demyelination and destruction of nerve cells).

What is function of alveolar ridge?

Alveolar Ridge: The alveolar ridge is a structure that lies directly behind the upper front teeth. It’s considered an important structure in speech because the tongue tip continually touches the ridge to form consonant sounds.

What is a ridge defect?

The thick ridge of bone that houses the sockets for the teeth on the jawbones and holds the teeth is called the ‘alveolar process’. The tooth-bearing bones in humans are referred to as the mandible and the maxilla.

What is the purpose of alveolar ridge?

The alveolar ridge is an extension of the maxilla (the upper part of the jaw) and the mandible (the lower part of the jaw) and is a bony ridge that holds the sockets of the teeth. The alveolar ridge is a critical anatomical structure for healthy teeth and successful dental implants.

How is alveolar ridge atrophy related to facial morphology?

Considering that the edentulous jaws may be affected by the atrophy process, it was hypothesized that the morphology of the alveolar process of the maxilla may be dependent on the anterior facial height and anatomy of the mandible. Subjects and methods: Twenty-five healthy edentulous Caucasian individuals were randomly chosen.

How does alveolar atrophy affect the lower jaw?

The ensuing resorption is progressive and even the basal jaw may become involved. In the lower jaw, the mandibular nerve can become located on top of the crest, causing pain to denture wearers. Reduction of alveolar ridge height is far more frequently encountered in edentulous mandibles than in edentulous maxillae.

What causes reduction of alveolar ridge height in maxillae?

Reduction of alveolar ridge height is far more frequently encountered in edentulous mandibles than in edentulous maxillae. Longevity of denture wearing, gender and a diminished Body Mass Index are associated with increased ridge resorption, while age does not appear to be relevant.

How does osteoporosis affect the alveolar ridge?

Osteoporosis has not yet been shown to significantly influence alveolar ridge resorption, while recent research from specialized centers suggests that identified genetic factors can determine such bony changes. Fig 1: Typical phases in edentulous jaw bone resorption according to Atwood and Cawood & Howell.