What is serial extraction in orthodontics?

What is serial extraction in orthodontics?

Serial extraction is a sequential plan of premature removal of one or more deciduous teeth in order to improve the alignment of permanent teeth and then removal of permanent teeth to maintain the proper ratio between tooth size and arch size.

Who is the father of serial extraction?

History. Kjellgren of Sweden used the term “serial extraction” for the first time in 1929. The technique gained popularity in the United States in the 1940s by Hayes Nance under the term “planned and progressive extraction”. Nance is commonly known as the father of serial extraction in the United States.

Why do we do serial extraction?

The purpose of serial extraction is to encourage the early eruption of the first premolars ahead of the permanent canines and should only be considered where there is an arch discrepancy of >4 mm.

Why posterior teeth are extracted first?

Why are Maxillary Teeth Extracted before Mandibular teeth? It prevents any fall of enamel or restorative debris from falling into the extraction sockets of the lower arch.

What is reciprocal Anchorage?

Reciprocal – Type of anchorage when two units of teeth move towards each other with equal distance. Stationary – Type of anchorage where the teeth move in a translation manner, not tipping.

What cement is used for orthodontic bands?

5 Orthodontic cements most often used are zinc phosphate, zinc polycarboxylate, conventional glass ionomer cement (GIC), resin modified GIC and Acid modified composite resin.

How does a Frankel appliance work?

The Frankel appliance is used to effect changes in sagittal, transverse, and vertical jaw relationships and remove the abnormal muscle forces in the labial and buccal areas that restrict skeletal growth, thereby, providing an environment which maximizes skeletal growth.

What is cross bite?

What Is a Crossbite? A crossbite happens if your teeth don’t line up properly when your mouth is closed. It can affect a single tooth or groups of teeth, like your front or back teeth. Normally, your upper teeth are wider and sit on the outside of your bottom teeth.

What are the types of tooth extractions?

There are two main types of dental extraction, simple extraction and surgical extraction. Simple dental extraction is used to remove teeth that can be seen and are easily accessible, whereas surgical dental extraction typically requires an incision into the connective tissue to gain access to the tooth to be removed.

What are the different types of anchorage?

Classification based on space closure

• Group A Anchorage. This type is considered critical anchorage, which involves 75% movement of anterior teeth and 25% posterior teeth into the space created by extraction.
• Group B Anchorage.
• Group C Anchorage.
• Absolute Anchorage.

What is maximum anchorage?

Maximum anchorage refers to the situation where, strictly speaking, no such movement must occur if treatment goals are to be achieved. Anchorage can be quantified according to the amount of movement of the posterior teeth desired to close the residual extraction space.

What are the three types of cement that could be used in an orthodontic practice?

What is zinc phosphate cement?

Zinc phosphate cement the one of the oldest and widely used cements, and is commonly used for luting permanent metal restorations and as a base. It is a high-strength cement base, mixed from zinc oxide powder and phosphoric acid liquid.

What is Frankel functional regulator?

Frankel appliance or Frankel Functional Regulator is an orthodontic functional appliance which was developed by Rolf Fränkel in 1950s for treatment to patients of all ages (more so for adults In Orthotropics).