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Showing posts with label McDonagh. Show all posts
Showing posts with label McDonagh. Show all posts

Treatment of class III MALOCCLUSION (Karen McDonagh)

Even traditional orthodontics for third class malocclusion, concentrated on the lower jaw as the primary cause of the deviation, recent studies have suggested that 63% of skeletal class III malocclusions View maxillary retrusion. Most patients tend to present the maxillary hypoplasia associated with a normal or mildly prognathic mandible.

Unfortunately, I see too many young patients, for a second opinion, which is told there is no orthodontist can do but wait until their facial growth is completed and then work them for orthognathic surgery. Most surgical procedures to correct class malocclusion means even maxillary advancement! This suggests that the problem was never excessive mandibular growth, but rather a lack of development of the upper jaw. Such problems can be caused by nasal airway obstruction, when the child was younger.

Orthodontic treatment of malocclusion class can be defined in the following categories:

1. Growth modification maxillary expansion and drawn out face mask therapy

2. Growth variation means a Chin Cup for restraining mandibular growth, or

3. wait until growth has thus ceased to commit a patient to a dentist camouflage treatment or orthognathic surgery.

In my Orthodontic practice given the children show early signs of a class III malocclusion priority for treatment. My current treatment strategy involves lengthy and the development of the upper jaw, but I do not use Chin cups as I feel that they have a negative effect on the patient's temporomandibular joints.


The controversy currently exists that the optimal time to begin class on orthodontics. Takada examined maxillary prolonged therapy and reported that the time frame for puberty and middle of puberty is best, the natural growth of the upper jaw (stage C2-C3).

PATIENT TREATMENT GOALS FOR CLASS:

If we treat the patient as early in the growth cycle as possible, i.e. as soon as class III problems can be diagnosed, the following treatment goals:

1. reduce the growth in the size of the lower jaw.

2. increase the size of the upper jaw to its maximum genetic potential, and

3. Move the upper jaw until its maximum genetic potential.

A cephalometric analysis is important to confirm the diagnosis of class III malocclusion and draft either a surgical or non-surgical, treatment plan.

I personally use Jefferson cephalometric analysis as this fits perfectly to the correct diagnosis of a class III patient. In the analysis of Jefferson, the size of the lower jaw and mandible position simply related to the length and position of the anterior skull base. The size of the upper jaw and the position of the upper jaw, can also be related to size and position of the anterior skull base.

Jefferson cephalometric analysis provides an easy visual means to identify the jaw/mandibular inequalities

Karen McDonagh is a proud contributing author and writes articles on several subjects including dental care. She is passionate about dental education Professional and always looking for better ways to educate people.
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Denture Adhesives & How It Work (Karen McDonagh)

Denture adhesive is generally defined as a commercially available, non-toxic, soluble or insoluble material that is placed on the tissue surface to amplify the retention, stability and performance of the denture. This also gives the patient an increased sense of security while wearing the prosthesis. Denture adhesives are sometimes called fixatives or adherents and have been recorded in dental literature as non-medical products since 1935.

In recent years, studies have shown about thirty percent of the population have tried using a denture adhesive product, although less have continued to use it on a regular basis. Patients who regularly use denture adhesives report satisfaction and improvement of retention, mastication ability and an increased confidence provided by using such product. Dental education professionals can be reluctant to advising patients of the use adhesive products due to dependency and the impression it may appear to compensate for a poorly fabricated prosthesis. There are, however, circumstances in which the use of adhesive is of prime benefit in which the professional will then advise according and educate the patient in correct use and safety measures.

How Denture Adhesives Work

In order to understand how adhesives enhance retention, one must first understand how saliva is a key to denture retention. Normally, dentures do not rest directly on the oral mucosa, there is a film of saliva between the tissue surface and the mucosal surface. This salivary film provides retention through the interfacial physical forces of adhesion, cohesion, and surface tension.

- Adhesion is defined as the attraction of molecules to each other. Saliva adheres to the surface of the denture and to the mucosal surface.

-Cohesion is defined as the attraction of molecules to each other and this is observed within the film of saliva. The salivary film on the denture and the salivary film on the oral mucosa cohere to each other.

-Surface tension is seen as the resistance to separation of the salivary film between the well adapted surfaces of the denture and mucosa. Displacement forces placed on the denture are resisted by surface tension forces working within the saliva.

The adhesive product essentially enhances the same mechanism by which saliva contributes to denture retention through these Interfacial forces.

Denture adhesives enhance interfacial forces through a hydrated material formed when the denture adhesive is mixed with saliva or water. There is an increase in adhesion and cohesion as the formed hydrated material adheres readily to both the tissue surface of the prosthesis and the mucosal surface. This hydrated material also possesses intrinsic cohesion properties that have a higher resistance to pull forces than the same.

cohesion properties of saliva. Furthermore, the formed hydrated material increase saliva viscosity, possess the ability to swell when in contact with saliva or water, and flow readily under pressure. This causes an elimination of voids between the tissue surface of the prosthetic and the oral mucosa upon which it sit.
- See more at: http://www.bidblue.com/article.php?id=56293#sthash.oqg0zgyY.dpuf

Karen McDonagh is a proud contributing author and writes articles on several subjects including Dental Courses. She is passionate for Dental CPD and always looking for better ways to educate people.
reade more... Résuméabuiyad

Denture Adhesives & How It Work (Karen McDonagh)

Denture adhesive is generally defined as a commercially available, non-toxic, soluble or insoluble material that is placed on the tissue surface to amplify the retention, stability and performance of the denture. This also gives the patient an increased sense of security while wearing the prosthesis. Denture adhesives are sometimes called fixatives or adherents and have been recorded in dental literature as non-medical products since 1935.

In recent years, studies have shown about thirty percent of the population have tried using a denture adhesive product, although less have continued to use it on a regular basis. Patients who regularly use denture adhesives report satisfaction and improvement of retention, mastication ability and an increased confidence provided by using such product. Dental education professionals can be reluctant to advising patients of the use adhesive products due to dependency and the impression it may appear to compensate for a poorly fabricated prosthesis. There are, however, circumstances in which the use of adhesive is of prime benefit in which the professional will then advise according and educate the patient in correct use and safety measures.

How Denture Adhesives Work

In order to understand how adhesives enhance retention, one must first understand how saliva is a key to denture retention. Normally, dentures do not rest directly on the oral mucosa, there is a film of saliva between the tissue surface and the mucosal surface. This salivary film provides retention through the interfacial physical forces of adhesion, cohesion, and surface tension.

- Adhesion is defined as the attraction of molecules to each other. Saliva adheres to the surface of the denture and to the mucosal surface.

-Cohesion is defined as the attraction of molecules to each other and this is observed within the film of saliva. The salivary film on the denture and the salivary film on the oral mucosa cohere to each other.

-Surface tension is seen as the resistance to separation of the salivary film between the well adapted surfaces of the denture and mucosa. Displacement forces placed on the denture are resisted by surface tension forces working within the saliva.

The adhesive product essentially enhances the same mechanism by which saliva contributes to denture retention through these Interfacial forces.

Denture adhesives enhance interfacial forces through a hydrated material formed when the denture adhesive is mixed with saliva or water. There is an increase in adhesion and cohesion as the formed hydrated material adheres readily to both the tissue surface of the prosthesis and the mucosal surface. This hydrated material also possesses intrinsic cohesion properties that have a higher resistance to pull forces than the same.

cohesion properties of saliva. Furthermore, the formed hydrated material increase saliva viscosity, possess the ability to swell when in contact with saliva or water, and flow readily under pressure. This causes an elimination of voids between the tissue surface of the prosthetic and the oral mucosa upon which it sit.
- See more at: http://www.bidblue.com/article.php?id=56293#sthash.oqg0zgyY.dpuf

Karen McDonagh is a proud contributing author and writes articles on several subjects including Dental Courses. She is passionate for Dental CPD and always looking for better ways to educate people.
reade more... Résuméabuiyad