Diseño de un compactador de precisión para su uso en regeneración ósea guiada en el área de la cirugía oral

Abstract

 During the processes of guided bone regeneration in the 
maxillary bones, which aim to recover or preserve support 
tissue for the placement of implants on which dental 
prostheses are retained, the use of various particulate graft 
biomaterials from different sources (animal or synthetic) 
is standardized. At present, the pressure of compaction of this 
material in the recipient bone is manual, dependent on the 
clinician, although there is some scientific evidence on the 
effects of different compressive forces on angiogenesis and 
prognosis of the regeneration of the grafted areas. 
The aim of the present study is to design, calibrate and verify 
in vitro a compaction instrument for clinical use, which allows 
a controlled and precise compaction pressure of the particulate 
graft biomaterial and standardize the procedure. 
The designed instrument is a precision compactor of adequate 
size for proper intra and extraoral clinical manageability and 
manufactured in a sterilizable material by autoclaving. The 
range of compression that allows (0 -1,82 Newton), is within 
the forces that are commonly applied in surgery and that 
have been determined by a specific test on 8 oral surgeons. 
Instrument calibration has been performed by an independent 
accredited company. 
The testing of the instrument was carried out by an in vitro 
test where the biomaterial was compacted at different forces 
(0,80 and 1,82 Newton) and was observed by a computerized 
micro-tomography that when increasing the compression 
force, decreased the space between particles provided for the 
migration and proliferation of new blood vessels and cells