Metastatic Disease In adults, metastases to the jaws most commonly originate from primary carcinomas of the breast in women and of the lung in men. Other common primary sites in decreasing order of frequency are the prostate, gastrointestinal tract, kidney, colon, and rectum. SCC Treatment of the N0 neck with elective neck dissection is indicated […]
Trigeminal neuralgia is characterized by paroxysmal, lacinating pain in the distribution of one or more of the divisions of the 5th nerve in a woman in the 6th or 7th decade of life. Pain of trigeminal neuralgia is usually provoked by trivial stimulation of the involved dermatome. Traumatic trigeminal neuralgia occurs in a younger population
Trigeminal Neuralgia Read Post »
Magnetic resonance imaging (MRI) is a noninvasive method of mapping the internal structure of the body which completely avoids the use of ionizing radiation and appears to be without hazard. It employs radiofrequency (rf) radiation in the presence of carefully controlled magnetic fields in order to produce high quality cross-sectional images of the body in
Magnetic Resonance Imaging (MRI) Read Post »
the “Holdaway Ratio” is used to evaluate the prominence of the mandibular incisors and bony chin. The ratio is calculated by comparing the distance of the lower incisor edge and pogonion to the N-B line. Ideally, the Holdaway Ratio should be approximately 1.0 in males and 0.5 to 1.0 in females. This relationship is useful
Osteoradionecrosis can be characterized as impaired wound healing due to the nature of radiation induced vasculitis and subsequent radiation fibrosis which severely compromises or even eliminates the microvasculature of the periosteum as well as endosteal tissue vascular channels while challenging and disabling the overlying integumental vascular plexus as well. There is a certain amount of
Osteoradionecrosis Read Post »
History of Bilateral Sagittal Split Osteotomy 1907: Blair described a completely horizontal osteotomy. Straight across. 1942: Schuchardt modified the buccal osteotomy to be 10mm inferior to the lingual osteotomy; dotted line indicates Blair’s original horizontal osteotomy. 1953-1957: Trauner/Obwegeser further increased the distance between buccal and lingual osteotomies from 10mm to 25mm, thus pioneering the original sagittal split osteotomy. 1961: Dal Pont advanced the buccal osteotomy
Bilateral Sagittal Split Osteotomy (BSSO) Read Post »
Platysma Submental Superiorly based is submental Posteriorly based is occipital Inferiorly based is transverse cervical artery Sternocleidomastoid Superior based: occipital, Inferior based: transverse cervical Latissimus Dorsi Thoracodorsal (branch of subscapular) Trapezius Transverse cervical Lateral Thigh Deep femoral Anterolateral Thigh Lateral circumflex femoral Nasolabial: interpolated flap that is transferred by pivotal movement and has a linear
Myocutaneous Flaps Read Post »
Transseptal fibers: extend interproximal over the alveolar bone and embed in cementum of adjacent teeth Alveolar crest: extend obliquely from the cementum to the alveolar crest Horizontal fibers: attach to the cementum apical to the alveolar crest fibers and run perpendicularly from the root of the tooth to the alveolar bone Oblique fibers: run from
Periodontal Ligaments Around Teeth Read Post »
Temporomandibular Joint Ankylosis: Classification and Clinical Significance Temporomandibular joint (TMJ) ankylosis is a debilitating condition characterized by restriction of mandibular movement due to fibrous or bony fusion of the joint components. It may result from trauma, infection, inflammatory disease, or prior TMJ surgery and can lead to significant functional, esthetic, and airway-related complications if left
Armamentarium #9 Molt periosteal elevator #15 Scalpel blade Appropriate sutures (4-0 Vicryl sutures, 4-0 chromic gut sutures) Curved Mayo scissors Double-guarded septal osteotome Freer elevator Kirschner wire Langenbeck (toe-in) retractors (two) Local anesthetic with vasoconstrictor Mallet Needle driver Pterygoid chisel Round bur Safe-edge saw Sagittal saw Selden retractor Spatula osteotome Straight osteotome Suture scissors Woodson
LeFort Maxillary Osteotomy Read Post »
