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Shenzhen Berry Dental Laboratory Co.,Ltd
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Co-Cr Material Telescope Crowns Precision Attachment Stabilizing Properties

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Co-Cr Material Telescope Crowns Precision Attachment Stabilizing Properties

Brand Name : BERR
Model Number : PA-BC
Certification : FDA,ISO9001:2001,ISO13485
Place of Origin : SHENZHEN, CHINA
MOQ : Negotitation
Price : Negotitation
Payment Terms : T/T
Supply Ability : 300units per day
Delivery Time : 3-5 days after we receive model
Packaging Details : plastic box(10*9*5 cm) with foam in it, and a big carton box for the outside.
Material : Co-Cr
Properties : Stabilizing
Retentive : Good
Allergy : No
Discolor : No
Type : Precision attachment
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Co-Cr Material Telescope Crowns Precision Attachment Stabilizing Properties


Introduction


Telescopic copings have been used for several years in oral rehabilitation of patients with advanced periodontal disease.


Patients with periodontal disease undergoing prosthetic reconstruction often present with teeth with minimal supportive tissue and increased tooth mobility.


Therefore, it is extremely important for the prosthesis not to cause periodontal destruction or worsen an existing periodontal condition.


Three different types of double crown systems are used to retain RPDs. They are distinguished from each other by their retention mechanisms:


  • Cylindrical crowns that exhibit retention through friction fit of parallel-milled surfaces
  • Conical crowns or tapered telescopic crowns that exhibit friction only when completely seated using a “wedging effect.” The magnitude of the wedging effect is mainly determined by the convergence angle of the inner crown; the smaller the convergence angle, the greater is the retentive force
  • Double crown with clearance fit (hybrid telescope or hybrid double crown) exhibits no friction or wedging during insertion or removal. Retention is achieved by using additional attachments or functional-molded denture borders.

Advantage


  • Creation of a common path of insertion
  • Easy to perform routine oral hygiene
  • Rigid splinting action
  • Distribution of stresses to the abutment teeth
  • Provision of suitable abutments for RPDs even when the remaining teeth are periodontally compromised
  • Much easier insertion and removal for the patient
  • Accommodates future changes in the treatment plan
  • Psychologically well-tolerated by patients.

Disadvantage


  • Increased cost
  • Complex laboratory procedures
  • Extensive tooth reduction required
  • Increased number of dental appointments
  • Difficulty in achieving esthetics
  • Retention diminishes after repeated insertion/separation cycles
  • Readjustment of retentive forces is difficult.

​Although fixed restoration provides favorable conditions for preservation of oral function, telescopic overdenture may be considered as another option, combining good retentive and stabilizing properties with a splinting action. The telescopic system may therefore be seen as providing suitable abutments for overdenture even when the remaining teeth are compromised. For other prostheses, excellent oral hygiene maintenance is essential for an optimal prognosis. With telescopic construction, apart from the splinting of the abutment teeth with the telescopic system, the gingival tissues are easily accessible around the entire marginal circumference of the abutment, thus permitting easy home care and oral hygiene. However, correctly implemented plaque control is fundamental in the prevention of recurrence of gingivitis.




Product Tags:

Telescopic overdenture

      

telescopic denture technique

      
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