Abstract
There are many unknown factors in mechanism of postoperative regeneration of the paranasal sinuses that oftn impair normal healing process following operations.
The authors described following two important observations as causative factors for postoperative regeneration of the sinuses.
1) Marrow is encountered in the direction of development of the sinus.
2) The upper termination of the bony wall adjoining marrow is of biochemical juvenescence type.
The above mentioned two etiological factors would be considered as local predesposition that cause the enlargemental regeneration of the paranasal sinus after operation.
In another word, the local predisposition is a preparative state of enlargmental regeneration and in addition to this external factors, for example, operative stimulation could accelerate the postoperative enlargemental regeneration of the paranasal sinus.
In the course of this process, from a view of biochemical stand, the author considers acidosis develops locally and osteocrusts are increased, then repneumatization will be followed as the result.
