Elevators (also known as luxators) are instruments used in dental extractions. They may be used to loosen teeth prior to forceps extraction, to remove roots or impacted teeth, when teeth are compromised and susceptible to fracture or when they are malpositioned and cannot be reached with forceps.[1]
Elevators work on the principle of leverage to dislodge a tooth from its socket. The fulcrum is usually the crest of the socket bone; however, adjacent teeth can be used if they are also to be extracted. The contact point on the tooth or root surface where force is delivered is described as the purchase point, and the position of this can be idealised by cutting bone or sectioning teeth. With root picks especially, a slot or notch may be cut into the root surface to obtain a purchase point.[2]
Varietiesedit
Instruments can be broadly classed as elevators or luxators. Conventional elevators are bulkier and are designed to withstand leverage and torquing forces. Luxating elevators are thinner and sharper, for more delicate use in severing and wedging the ligament.
There are three main types of elevator. Straight elevators e.g. Coupland's or Warwick James' have one concave and one convex aspect to the tip and are used for wedging. Triangular elevators e.g. Cryer's or Winter's have a lateral point and are used to deliver class I leverage. Especially when combined with a T-bar, these can deliver large forces and risk jaw fracture. Pick elevators are used to engage root tips.[3]
Referencesedit
^Pogrel, MA, Kahnberg, K, & Andersson, L (eds) 2014. Essentials of Oral and Maxillofacial Surgery. John Wiley & Sons.
^Mamoun J. Use of elevator instruments when luxating and extracting teeth in dentistry: clinical techniques. J Korean Assoc Oral Maxillofac Surg. 2017;43(3):204-211.
^Charles Elder Rounds AB, DMD. Principles and techniques of Exodontia. 2nd ed. 1962 Mosby.
elevator, dental, elevators, also, known, luxators, instruments, used, dental, extractions, they, used, loosen, teeth, prior, forceps, extraction, remove, roots, impacted, teeth, when, teeth, compromised, susceptible, fracture, when, they, malpositioned, canno. Elevators also known as luxators are instruments used in dental extractions They may be used to loosen teeth prior to forceps extraction to remove roots or impacted teeth when teeth are compromised and susceptible to fracture or when they are malpositioned and cannot be reached with forceps 1 Coupland s Elevators Contents 1 Mechanics 2 Varieties 3 References 4 See alsoMechanics editElevators work on the principle of leverage to dislodge a tooth from its socket The fulcrum is usually the crest of the socket bone however adjacent teeth can be used if they are also to be extracted The contact point on the tooth or root surface where force is delivered is described as the purchase point and the position of this can be idealised by cutting bone or sectioning teeth With root picks especially a slot or notch may be cut into the root surface to obtain a purchase point 2 Varieties editInstruments can be broadly classed as elevators or luxators Conventional elevators are bulkier and are designed to withstand leverage and torquing forces Luxating elevators are thinner and sharper for more delicate use in severing and wedging the ligament There are three main types of elevator Straight elevators e g Coupland s or Warwick James have one concave and one convex aspect to the tip and are used for wedging Triangular elevators e g Cryer s or Winter s have a lateral point and are used to deliver class I leverage Especially when combined with a T bar these can deliver large forces and risk jaw fracture Pick elevators are used to engage root tips 3 References edit Pogrel MA Kahnberg K amp Andersson L eds 2014 Essentials of Oral and Maxillofacial Surgery John Wiley amp Sons Mamoun J Use of elevator instruments when luxating and extracting teeth in dentistry clinical techniques J Korean Assoc Oral Maxillofac Surg 2017 43 3 204 211 Charles Elder Rounds AB DMD Principles and techniques of Exodontia 2nd ed 1962 Mosby See also editDental key Retrieved from https en wikipedia org w index php title Elevator dental amp oldid 1212953843, wikipedia, wiki, book, books, library,
