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Front-block technical note: dental and bone borne distractors.

R Castro¹, F Afota¹, I Saint-Surin¹

¹Service d'O.R.L, chirurgie orale et maxillo-faciale, Pr J. Santini and Pr L. Castillo, institut universitaire de la face et du cou (IUFC), CHU de Pasteur, 31, avenue de Valombrose, 06100 Nice. France.

Journal of Stomatology, Oral and Maxillofacial Surgery

|November 6, 2018

Summary

Segmental osteogenesis distraction of the anterior mandible alveolar process, or front-block, uses dental and bone-borne distractors. This technique allows controlled bone movement for improved stability without excessive tooth loading.

Keywords:

Alveolar process Distraction osteogenesis Front-block Orthognatic surgery Segmental distraction

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Area of Science:

Oral and Maxillofacial Surgery
Orthodontics
Biomaterials and Tissue Engineering

Background:

The front-block (segmental osteogenesis distraction of the anterior mandible alveolar process) technique was introduced in 2001.
This method addresses anterior mandibular alveolar process deficiencies, including lower incisors.

Purpose of the Study:

To describe the technical aspects of the front-block distraction process.
To highlight the use of both dental-borne and bone-borne distractors in this technique.

Main Methods:

Utilized a dental-borne distractor and a bone-borne distractor (genioplasty plate).
Emphasized the dual distraction vectors: dental and alveolar.
Focused on achieving controlled segmental osteogenesis translation.

Main Results:

The technique provides good stability during distraction.
Achieved controlled segmental osteogenesis translation.
Enabled sufficient alveolar segmental transport without overloading the teeth.

Conclusions:

The front-block technique offers a stable and controlled method for anterior mandibular alveolar distraction.
The dual distraction vector approach effectively manages bone transport while minimizing dental stress.