August 26th, 2009 by admin
Class II malocclusion is often accompanied by other functional
defects. For example, a maxillary overbite is often
associated with obstructed nasal airways, lip incompetence,
and hyperactivity of the mentalis muscle. Mandibular retrognathism
(symmetrical mandibular hypoplasia) can be
accompanied by temporo-mandibular joint dysfunction and
myofacial pain. Patients often seek help because of this
problem. Read the rest of this entry »
August 26th, 2009 by admin
A class III malocclusion can be the result of a vertical or horizontal
maxillary hypoplasia, a horizontal mandibular
hyperplasia, or a combination of these deviations. The clinical
examination and cephalometric analysis enable the
anatomical discrepancy to be exactly localized. If the class
III malocclusion is due only to bilateral hyperplasia, the corresponding
treatment consists in a reduction of the maxillary
excess combined with mandibular osteotomie.
The most widely used technique for correcting a horizontal Read the rest of this entry »
August 1st, 2009 by admin
The general practitioner should be familiar
with and be able to perform a simple soft tissue
biopsy. Every day, general dentists perform
many complicated procedures including:
extraction of bony impactions, molar
root canal therapy, and surgical periodontal
procedures. All of these procedures are more Read the rest of this entry »
August 1st, 2009 by admin
This type of biopsy is described as the removal
of an entire lesion including a representative
portion of normal tissue surrounding
the lesion. This is the preferred method
of removal for small minor lesions that appear
to be benign. This procedure is both diagnostic
and definitive in nature in that the Read the rest of this entry »
August 1st, 2009 by admin
Incisional biopsy is the removal of a representative
portion of a lesion for microscopic
examination. This type of biopsy is primarily
used on large, diffuse, or malignantappearing
lesions. The intent of this procedure
is to remove a portion of the tissue in
question along with a sample of normal adjacent
tissue for comparison. Read the rest of this entry »
August 1st, 2009 by admin
This technique is a noninvasive adjunct to
the normal full-mouth soft tissue examination.
To be clear, this procedure is not a
biopsy, but a diagnostic method. However, it
may aid in the visualization and evaluation
of an oral mucosal abnormality. Originally,
this technique was adapted from OB-GYN’s
Visual Cervical Screening Test. Its application Read the rest of this entry »
August 1st, 2009 by admin
Although not commonly performed by the
general dentist, the FNA will be discussed in
order that the practitioner may be aware of
the technique, its application, and the difference
between it and the similar aspiration
biopsy.
This procedure is normally reserved for
deep soft tissue lesions not easily obtained Read the rest of this entry »
August 1st, 2009 by admin
Aspiration biopsy is removing contents of a
lesion for the purpose of analysis or quick
observation. This technique should not be
confused with fine needle aspiration biopsy
(FNA), which will be discussed later.
Aspiration biopsy is typically used to rule Read the rest of this entry »
August 1st, 2009 by admin
A computer-assisted method of analysis
developed by Oral CDx (OralScan Laboratories,
Suffern, NY) is an important adjunct
in the clinical assessment of an oral
lesion. As stated, the majority of oral cancer
goes undiagnosed until obvious signs of malignancy
are exhibited—usually late in the
disease process.10 Consequently, the fiveyear
survival rate of oral cancer is low—
approximately 52 percent11 (see Table 7.5).
The purpose of the oral brush biopsy is to Read the rest of this entry »
August 1st, 2009 by admin
Biopsy, by definition, is the removal of tissue,
cells, or fluids from the living body for
diagnostic examination in order to confirm
or establish the diagnosis of disease. The
mere mention of the word biopsy traditionally
has implied the eminent use of a sharp
knife. Scalpel biopsy is still the gold standard upon which all clinicians rely for a definitive
diagnosis. In addition to this technique, the Read the rest of this entry »
