Treatment of Condylar Hypoplasia and Occlusal Cant Using Simultaneous Maxillomandibular Distraction Osteogenesis

Unilateral condylar hypoplasia can be either genetic (or congenital) or acquired. In the genetic group, the early differentiation of tissues and or developmental processes are affected, congenital hemifacial microsomia, micrognathia, Treacher Collins syndrome, Pierre Robin syndrome, Crouzon syndrome and cleft lip and palate exemplify the genetic group. 


In the second group i.e., acquired condylar hypoplasia, the etiology is either due to local factors like trauma, mandibular infection, spread of infection from middle ear disease and radiation or due to systemic factors like infection, dietary and endocrine causes. Acquired condylar hypoplasia may develop after the loss of one or both condylar growth centers in very early stages of life and is sometimes accompanied by ankylosis.   Read More>>>>>>>>>
 








Comments

Post a Comment

Popular posts from this blog

Alternative Coinitiators Applicable to Photocurable Resin Composites

Image
The composite resins available on the market today are mostly light-cured resins. So, photoinitiator molecules are included in these materials which have the ability to absorb light, and as result, generate free radicals which initiate the polymerization of these resin materials.  The light curing systems most commonly employed in the composites are the camphorquinone/amine system. The photoinitiator is camphorquinone, which requires a coinitiator to perform the polymerization process. Tertiary amines (aliphatic or aromatic) do not absorb light, but interact with the activated camphorquinone to produce reactive species. However, this photoinitiator system has some disadvantages, such as the tendency to promote yellowing to resin materials low compatibility with oral tissues   and even mutagenic characteristics. PDF LINK
Read more

Enostosis Mimicking a Supernumerary Tooth

Image
A 17 year old female with history of malaligned teeth was referred from orthodontist for extraction of a supernumerary tooth along with first premolars in lower jaw. This is a usual practice to gain space for future orthodontic treatment. The referral included an orthopantomogram revealing a dense, well defined radiopaque lesion in relation to the periapical region of lower left first and second premolars. It is horizontal in alignment measuring 2 cm inlength and 5 mm in width lying parallel to lower border in close proximity withroots of premolars. On examination, clinically there was no cortical bone expansion or enlargement on the labial or lingual side.  The patient did not show any signs or symptoms of infection. The orthodontist considered this radiopaque lesion (supernumerary tooth in jaw) to interfere with his orthodontic treatment or potentially cause resorption of roots.  In view of determining the proximity of this radiopacity to surrounding structures, we ...
Read more

Best materials in the treatment of periodontitis

Image
Recently scientists evaluated the healing outcomes of Intermediate Restorative Material (IRM) and mineral trioxide aggregate (MTA) materials as root-end seal of teeth with apical periodontitis. They found that both the methods are effective in the treatment of periodontitis. Teeth with previous conventional endodontic root-canal treatment may present persistent symptomatic or asymptomatic apical periodontitis. Such teeth could be a subject to periapical surgery using a modern technique with an expected good outcome. However, uninstrumented teeth with a need of conventional endodontic treatment can also benefit from such a surgical procedure. In a long-term perspective the orthograde retreatment of the root filling offers a more favorable outcome, 83% versus 72% for periapical surgeryafter 4-6 years. In contrast to that a meta-analysis from Kang et al. revealed a significantly higher success rate for periapical surgery in a short term perspective (less than 4 years) compared ...
Read more