Most Common Causes of Some Conditions : Contemporary Oral and Maxillofacial Surgery, 6th Edition, Mosby

Most Common Causes of Some Conditions:

1. The most common cause of adrenal insufficiency is chronic therapeutic corticosteroid administration (secondary adrenal insufficiency).

2. The most common cause of a transient loss of consciousness in the dental office is vasovagal syncope.

3. During normal development, the lower third molar begins in a horizontal angulation, and as the tooth develops and the jaw grows, the angulation changes from horizontal to mesioangular to vertical. Failure of rotation from the mesioangular to the vertical direction is the most common cause of lower third molars becoming impacted.

4. A complication that every dentist believes can never happen—but happens surprisingly often—is extraction of the wrong tooth. This is usually the most common cause of malpractice lawsuits against dentists.

5. The most common cause of delayed wound healing is infection. Infections are a rare complication after routine dental extraction and are primarily seen after oral surgery that involves the reflection of soft tissue flaps and bone removal.

6. The most common cause of treatment failure of odontogenic infections is inadequate surgery. Atooth  may have to be re-evaluated for extraction, or an extension of the infection into an area not detected during the first treatment may have to be incised and drained.

7. The most common cause of Ludwig’s angina is an odontogenic infection.

8. Oral Candidiasis: Candida rarely causes disease unless the patient’s health becomes compromised. The two most common causes of compromise are:
- administration of antibiotics, especially penicillin, for prolonged periods,  and
-  immune system compromise, as occurs with acquired immunodeficiency syndrome (AIDS) or chemotherapy for leukemias and other forms of cancer.

9. One of the most common causes of true mucoceles is surgery on the sinus that results in separation of a portion of the sinus lining from the main portion of the sinus. This area can then become filled with mucus and walled off, forming a separate cystic lesion. These lesions are termed surgical ciliated cysts or postoperative maxillary cysts.

10. The most common causes of temporomandibular disorders (TMDs) are muscular disorders, which are commonly referred to as myofascial pain and dysfunction. These muscular disorders are generally managed with a variety of reversible nonsurgical treatment methods.

11. The most common cause of TMJ ankylosis involves macro-trauma, most frequently associated with condylar fractures. Other causes of ankylosis include previous surgical treatment that resulted in scarring and, in rare cases, infections.