Dental Screws in Dental Implant Prosthodontics

Dental screws are used to attach abutments to implants and prostheses to abutments. Screws designed for abutment to implant attachment have different mechanical properties compared to screws used to attach prosthesis to abutment. The following is a general description of dental screws.

Dental Screw

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Bone Repair in Dental Implantology

Dental Implant placement is determined by available bone present in the alveolar ridge. The bone present also determines if there is proper soft tissue contour necessary for an optimum esthetic result. Oftentimes there is insufficient bone to provide a proper foundation for the dental implants resulting to insufficiency of soft tissue contour.

Bone Graft Procedure on buccal bone plate. Photo credit: Oris Neobiotech

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Dental Implants in Esthetic Zone

The establishment of optimum and predictable esthetics is one of the most important and challenging aspects of rehabilitation with dental implants. Rehabiliation of esthetics has to be predictable. There is no rejection with dental implants. Only the maintenance of height of crestal bone and esthetic outcome is yet to be universally successful. While there are multifactorial factors to this, the implant abutment connection has an influence to the esthetic zone. The atrophic ridge remains to be a challenge in the placement of implants in the esthetic zone.

Dental Implants in the Esthetic Zone, or anterior maxilla.

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Implant Therapy

Dental Implant Therapy constitutes the principal technique in dental rehabilitation. Nowadays, it is not imaginable to exclude dental implantology from the daily dental practice. According to a accredited data in international literature, one can attain success rates of more than 90% in 10 years. Scrupulous selection of patients and the formulation of a correct implant prosthodontic plan allows high predictability and implant success.

A good implant prosthetic treatment plan allows high dental implant success rate.

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Perforation in Dental Implant Installation

Perforated Lingual or Buccal There will be no problem if the fixture threads are imbedded in bone.

Perforated Bone Coronally Do a bone graft procedure if fixture threads are exposed at the coronal. Section small amounts of bone, mix with Resorbable Tissue Replacement, then place the bone graft material over the exposed threads.

Bone Graft Procedure on buccal bone plate. Photo credit: Oris Neobiotech

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Dental Implant Torque

For final tightening of the dental implant, torque ratchet is used. It is also used to measure the exact torque of the dental implant. Over threading is also prevented by using the torque ratchet. Over threading could strip all threads in bone.

Neobiotech torque ratchet is used to measure the exact torque of the dental implant. Photo credit: Oris Neobiotech

Dental Implant Fixture Installation

The dental implant fixture mount is attached to the fixture using the open ended wrench. The inner hexagonal surface should fit properly over the fixture head. Match the inner surface of the handpiece connector to the square top of the fixture mount and apply gentle pressure between the components.

When the apex of the fixture is threaded and no longer visible, begin irrigation. Photo credit: Oris Neobiotech

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Dental Implant Fixture Parallelism

The direction indicators are inserted into the dental implant site to check and maintain parallelism during preparation.

Poor fixture alignment

If the angle with adjacent fixture is less than 35 degrees, there will be not be a major problem prosthetically.

Direction indicators are inserted after each twist drill procedure is completed to verify parallel fixture sites. Photo credit: Oris Neobiotech

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Dental Implant Drilling Procedure

Copious saline irrigation is required in the use of any drilling instruments. A surgical splint is used to determine dental implant fixture insertion site. In the maxilla, a fixture for 11 or 21, is placed 3 mm from the midline suture line.

After pilot drilling is done, the fixture site is enlarged using a 3.0 mm diameter twist drill. The procedure is important for preparing the implant fixture site to proper depth. The indicator mark on the drill should be level with the bony margin.

Use the twist drill to finalize enlargement fo dental implant fixture site. Photo credit: Oris Neobiotech

Implant Supported Complete Denture

Implant Supported Complete Denture is an optimum solution for Completely Edentulous patient. Implant Supported Denture virtually eliminates slipping and movement. Patients will be able to laugh and speak with confidence and eat food with ease.

Dental Implant supported complete denture have the following advantages:

  • It increases comfort and stability.
  • It restores a secure biting ability.
  • Maintains integrity of facial structure.
  • It eliminates need for adhesives.
  • It improves facial appearance.
  • It improves eating.
  • Improves speech and confidence in speaking.