[Comparative experiments of stripping sheep maxillary sinus mucosal with new-type stripper and umbrella detacher].
OBJECTIVE
To compare the stripping length obtained through the model of 0.012 and 0.014 of the nickel-titanium dual-stage maxillary sinus mucosa stripper, and the umbrella detacher.


METHODS
Twenty-four goats (1.5-2 years old) were chosen, randomly divided into A, B, C groups, each group of eight. Group A was 0.012 model group, group B was 0.014 model group, group C was umbrella detacher group. Animal model was established, and maxillary sinus mucosa was stripped to the left and right sides of the bottom of the sinus in three groups. The data was measured when stripping to the limit or being perforated.


RESULTS
The average length of group A was 12.41 mm±4.35 mm, two cases perforated. The average length of group B was 23.38 mm±4.84 mm, one case perforated. The average length of group C was 2.61 mm±0.30 mm. The population mean of stripping length in three groups was not all the same calculated by analysis of variance (P<0.01). There were significant differences in the stripping length of the three groups by the SNK test (P<0.05).


CONCLUSIONS
The nickel-titanium dual-stage maxillary sinus mucosa stripper can achieve a larger mucosal stripping range. The stripper with a model of 0.014 has a moderate flexibility and safety, and it can strip a large area of sinus mucosa. .
Dept. of Stomatology, The First Hospital Affiliated to The PLA General Hospital, Beijing 100048, China.
Fan
F
Jiadong
Dept. of Stomatology, The First Hospital Affiliated to The PLA General Hospital, Beijing 100048, China.
Li
L
Yanfeng
Dept. of Stomatology, The First Hospital Affiliated to The PLA General Hospital, Beijing 100048, China.
Liu
L
Le
Dept. of Stomatology, The First Hospital Affiliated to The PLA General Hospital, Beijing 100048, China.
Han
H
Yishi
Dept. of Stomatology, The First Hospital Affiliated to The PLA General Hospital, Beijing 100048, China.
Hu
H
Pin
Dept. of Stomatology, The First Hospital Affiliated to The PLA General Hospital, Beijing 100048, China.
Zhang
Z
Yue
Dept. of Stomatology, The First Hospital Affi-liated to The PLA General Hospital, Beijing 100048, China.
Bao
B
Wenya
D000818:Animals; D006041:Goats; D008443:Maxillary Sinus; D023421:Models, Animal; D009092:Mucous Membrane; D009532:Nickel; D012756:Sheep; D014025:Titanium
C040654:titanium nickelide; D009532:Nickel; D014025:Titanium
maxillary sinus; nickel-titanium dual-stage maxillary sinus mucosa stripper; sinus floor elevation