Thursday, November 3, 2016

Sunday, October 9, 2016

MANDIBULAR MOVEMENTS (Posselt's Envelope)


 Hey!

As I said in my last post, I want to take this post to mention and show each and every one of the mandibular movements that we can find in Posselt's Envelope. At the end I will attach an interesting video and don't forget to see the pictures!

Posselt's Envelope! (Sagittal View)
Marcell Stefano GL

  The picture above just shows the sagittal view or plane of Posselt's Envelope but Posselt describes a frontal and horizontal plane which is used to demonstrate mandibular lateral movements (right or left).


Posselt's Envelope! (Horizontal and Frontal View)
Marcell Stefano GL
Now, we have to remember that these points are defined as the border limitation of mandibular movements, so moving the mandible to these points is moving it to its limit points.

Don't forget to watch the video!




See you soon...

Posselt's Envelope of Movement


    Hey everyone!

Posselt's Envelope is a guide for dentists to measure, observe and guide the different mandibular movements a person can do. It shows every movement possible and the relationship they have with one another.

   It includes movements such as: 


  • Retruded Contact Position (RCR)



  • Intercuspal Position (ICP)



  • Edge to Edge



  • Maximum Protrusion 



  • Minimal Opening or Mandibular opening with the condylar heads still in the glenoid cavity.



  • Maximal Opening or the translation of the condylar heads. 

  • Lateral Movements

These movements will be emphasized and explained in the next post of this blog. Meanwhile, you can check out this video which tells you a little bit about Posselt's envelope!





Thank you! Stay alert for the next post!

SOURCE: POSSELT'S ENVELOPE OF MOVEMENT, Muhammad-Knaneh

Sunday, October 2, 2016

Cleft Lip and Palate (WARNING: GRAPHIC CONTENT)



Cleft lip and cleft palate, which can also occur together as cleft lip and palate, are variations of a type of clefting congenital deformity caused by abnormal facial development during gestation. A cleft is a fissure or opening—a gap. It is the non-fusion of the body's natural structures that form before birth.

    Clefts can also affect other parts of the face, such as the eyes, ears, nose, cheeks, and forehead.




  If the cleft does not affect the palate structure of the mouth it is referred to as cleft lip. Cleft lip is formed in the top of the lip as either a small gap or an indentation in the lip (partial or incomplete cleft) or it continues into the nose (complete cleft). Lip cleft can occur as a one sided (unilateral) or two sided (bilateral).




Cleft palate is due to the failure of fusion of the maxillary and medial nasal processes (formation of the primary palate). It is a condition in which the two plates of the skull that form the hard palate (roof of the mouth) are not completely joined. Below, is an example of cleft lip and palate.




   Cleft lip and palate is very treatable; however, the kind of treatment depends on the type and severity of the cleft.

 
   MEDLINE PLUS- MEDICAL ENCYCLOPEDIA

Wednesday, August 10, 2016

In my way to success (UPDATE EN ESPAÑOL)


      Despues de un largo año desde mi ultimo post, puedo decir que mi sueño de estudiar la Carrera de Odontología se ha vuelto realidad. Me encuentro en estos momentos estudiando en la ciudad de Bogotá, Colombia siendo parte de varios proyectos y cada día trabajando mas para llegar a mi meta. Seguire publicando en este blog con mas frecuencia ya que para mi, el tema de cirugía maxillofacial es muy importante. Así mismo, tendran la oportunidad de ver algunas relaciones con lo que es la investigación sobre las celulas madre y los diferentes tejidos que se involucran en la cavidad oral.





Sunday, May 24, 2015

American Association of Oral and Maxillofacial Surgeons



  The American Association of Oral and Maxillofacial Surgeons (AAOMS) is a non-profit professional association serving the specialty of oral and maxillofacial surgery, the surgical arm of dentistry. Its headquarters are in Rosemont, Illinois.

Founded in 1918, AAOMS currently has an affiliation base of more than 9,000 fellows, members and residents in the United States, as well as 250 affiliate members from nations around the world. More than 90 percent of oral and maxillofacial surgeons in the United States belong to AAOMS. In addition to its membership, AAOMS has state component societies in each of the 50 states, the District of Columbia and the Commonwealth of Puerto Rico, and eight regional component societies.

AAOMS publishes the Journal of Oral and Maxillofacial Surgery and conducts the Daniel M. Laskin Award for an Outstanding Predoctoral Educator.






     The American Association of Oral and Maxillofacial Surgeons (AAOMS) represents more than 9,000 oral and maxillofacial surgeons in the United States, supporting specialized education, research and advocacy. AAOMS fellows and members comply with rigorous continuing education requirements and submit to periodic office anesthesia evaluations to ensure that office procedures and personnel meet stringent national standards.

http://myoms.org/

 Through the AAOMS Website you will be able to find information such as what they do, who they are, what treatments they offer, informative videos, news in the Oral and Maxillofacial world and even find a surgeon in your area. 

Monday, May 11, 2015

Corrective Jaw surgery (Orthognathic Surgery)



   Orthognathic surgery is surgery to correct conditions of the jaw and face related to structure, growth, sleep apnea, TMJ disorders, malocclusion problems owing to skeletal disharmonies, or other orthodontic problems that cannot be easily treated with braces. Originally coined by Harold Hargis, it is also used in treatment of congenital conditions like cleft palate. Bones can be cut and re-aligned, then held in place with either screws or plates. Orthognathic surgery can also be referred to as corrective jaw surgery.





    The surgery is performed by an oral and maxillofacial surgeon in collaboration with an orthodontist. It often includes braces before and after surgery, and retainers after the final removal of braces. Orthognathic surgery is often needed after reconstruction of cleft palate or other major craniofacial anomalies. Careful coordination between the surgeon and orthodontist is essential to ensure that the teeth will fit correctly after the surgery.



Procedure: 
  
  •    The surgery might involve one jaw or the two jaws during the same procedure. The modification is done by making cuts in the bones of the mandible and / or maxilla and repositioning the cut pieces in the desired alignment. Usually surgery is performed under general anaesthetic and using nasal tube for intubation rather than the more commonly used oral tube; this is to allow wiring the teeth together during surgery. The surgery often does not involve cutting the skin, and instead, the surgeon is often able to go through the inside of the mouth.
  • Cutting the bone is called osteotomy and in case of performing the surgery on the two jaws at the same time it is called a bi-maxillary osteotomy (two jaws bone cutting) or a maxillomandibular advancement.



    After orthognathic surgery, patients are often required to adhere to an all-liquid diet. After time,  soft food can be introduced, and then hard food. Diet is very important after the surgery, to accelerate the healing process. Weight loss due to lack of appetite and the liquid diet is common, but should be avoided if possible. Normal recovery time can range from a few weeks for minor surgery, to up to a year for more complicated surgery.


    For some surgeries, pain may be minimal due to minor nerve damage and lack of feeling. Doctors will prescribe pain medication and prophylactic antibiotics to the patient. There is often a large amount of swelling around the jaw area, and in some cases bruising. Most of the swelling will disappear in the first few weeks, but some may remain for a few months.

Also, the surgeon will see the patient for check-ups frequently to observe how the patient is doing, etc.