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Volume 20 (1995)
- Issue 4 Pages 159-
- Issue 3 Pages 97-
- Issue 2 Pages 33-
- Issue 1 Pages 1-
Volume 20, Issue 3
Displaying 1-6 of 6 articles from this issue
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Nobuhiro NOGUCHI, Masaaki GOTO, Takeshi KATSUKI1995 Volume 20 Issue 3 Pages 97-107
Published: July 31, 1995
Released on J-STAGE: February 19, 2013
JOURNAL FREE ACCESSVarious methods have been tried in order to measure and compare the changes of facial morphology of the patient with cleft lip and palate. The laser scanning system and recently advanced computer technology enable rapid noncontact three-dimensional measuring and analysis. In this study, the faces of three patients with cleft lip and palate were measured by using the laser scanning system (UNISN 3D-VMR201) before and after surgery. In one measurement, approximately 20,000 to 40,000 coordinates on the facial surface were taken within 4.3 seconds. The data were matched in the unchanged area and reconstructed three-dimensionally using software TRI to visualize minute morphological changes. This noninvasive measuring system is easy to use, and should be useful to analyze facial morphological changes due to growth or surgery of cleft patients. Data obtained will also be available for simulation surgery, using a computer, on each patient in the future.View full abstractDownload PDF (25728K) -
Kimiko KOUNO, Akira SUZUKI, Kumiko TERADA, Masayuki NAKANO1995 Volume 20 Issue 3 Pages 108-118
Published: July 31, 1995
Released on J-STAGE: February 19, 2013
JOURNAL FREE ACCESSAbstract: The purpose of this study was to clarify dental characteristics of tooth sizes of Japanese with cleft lip and palate. The materials consisted of serial dental casts of deciduous and permanent dentitions of 103 boys and 86 girls. Mesiodistal and buccolingual diameters were measured by digital sliding calipers. The following findings were obtained
(1) There were some differences in maxillary tooth crown sizes on cleft and on non-cleft sides, but not in mandibular ones. (2) The tooth crown sizes of anterior teeth in cleft subjects were larger than those of normal Japanese except for maxillary permanent lateral incisor, while the tooth crown sizes of posterior teeth in cleft subjects tended to be smaller than those of normal ones. (3) Correlation coefficients between teeth on the same dental arch were higher on the non-cleft side than on the cleft side. Also, the permanent lateral incisor showed no significant correlation with other teeth. (4) Similarly, in normal subjects, there were significant sex differences in tooth crown sizes between boys and girls, but no difference was seen in tooth crown sizes between right and left sides in the dental arch.View full abstractDownload PDF (1487K) -
Kayoko OHTA, Kazue ITO, Yuko IWAMI, Manami ISHIDA, Yuki AMANO, Kazuo T ...1995 Volume 20 Issue 3 Pages 119-127
Published: July 31, 1995
Released on J-STAGE: February 19, 2013
JOURNAL FREE ACCESSTwo cases, an eleven-year-old girl and a seven-year-old boy, with median cleft lip and palate were treated orthodontically. Morphologic features of the craniofacial skeleton and occlusion and the changes and the changes during orthodontic treatment are presented in this report.
1. The saddle angle was flattened, and the maxilla was located posterior and u pward, but the size of the maxilla was within the normal range.
2. The upper dental arch was na rrow and associated with posterior cross bite. The upper incisors adjacent to the median alveolar cleft showed mesial inclination and rotation.
3. Maxillary growth was almost normal during observation or ortho dontic treatment, and the anteroposterior relationship between the maxilla and mandible was Skeletal 1 after treatment.
These findings suggested that the craniofacial morphology and growth of the patients with median cleft lip and palate were within the normal range; therfore, an acceptable orthodontic treatment result may be anticipated.View full abstractDownload PDF (15189K) -
Takako MAEKAWA, Hajime SUNAKAWA, Hiroshi GIMA, Keiichi ARAKAKI1995 Volume 20 Issue 3 Pages 128-134
Published: July 31, 1995
Released on J-STAGE: February 19, 2013
JOURNAL FREE ACCESSVelopharyngeal function and articulation following primary palato-plasties were investigated in 121 cleft palate subjects at our institute from 1985 to 1989. The operation was performed by the pushback method on subjects aged 16 months to 17 years.
The resulst were as follows:
1. A sufficient velopharyngeal function was observed in 90 out of 105 cases (85.7%).
2. Articulation disorders were observed in 54 out of 96 cases (56.2%).
3. 77 cases of all cases (80.2%) acquired normal speech after operation.View full abstractDownload PDF (1211K) -
Maxillary ProtractionMasuhiro KAWANO, Akira SUZUKI, Byeong-Ju HAN, Atsuko SASAGURI1995 Volume 20 Issue 3 Pages 135-145
Published: July 31, 1995
Released on J-STAGE: February 19, 2013
JOURNAL FREE ACCESSThe purpose of this study was to e valuate dentofacial changes obtained by the maxillary protraction performed on cleft palate subjects with anterior crossbite, which resulted from growth deficiency of the nasomaxillary complex. The subjects that were seen at Kyushu University Dental Hospital were divided into three groups as follows:
(1) Cleft group: 16 cleft palate subjects treated by maxillary protractor in early mixed dentition,
(2) Control 1: 24 non-cleft subjects without orthodontic treatment,
(3) Control 2: 14 non-cleft subjects treated by maxillary protraction.
After analyzing dentofacial changes of pre- and post-treatment lateral cephalograms, the conclusions were as follows: (1) Forward change of the maxillary complex by maxillary protractor was very little in cleft subjects and much smaller than that in non-cleft subjects. (2) Correction of anterior crossbite following maxillary protraction in cleft palate subjects was made by relative backward positioning of the mandibular symphysis with backward and downward rotation rather than forward displacement of the maxillary complex. (3) Palatoplasty might have introduced a factor that disturbed the advancement of the maxillary complex during maxillary protraction.View full abstractDownload PDF (5007K) -
Yukari YAMASHITA, Satoko IMAI, Kimie MORI, Noriko SUZUKI, Ken-ich MICH ...1995 Volume 20 Issue 3 Pages 146-154
Published: July 31, 1995
Released on J-STAGE: February 19, 2013
JOURNAL FREE ACCESSTo clarifyt he correlationb etweent he kind of hospit al in which primary palatoplastyw as performeda nd speechd isorders, a clinico-statisticaslt udy was carried out on 319 cleft lip and palate patients secondarily treated in the speech clinic of the School of Dentistry, Showa University from July 1977 to December 1990. The patients were divided into three groups based on the kind of hospital in which primary palatoplasty was performed: Group 1, hospitals whose staff regularly attend the meeting: of the Japanese Cleft Palate Association,153 patients; Group 2, other hospitals,138 patients; Group 3, unknown, 28 patients.
The results were as follows:
1. 53.0% of the patients firs t visited our clinic at the age of more than seven years, and 82.7% of the patients underwent primary palatoplasty before the age of 3 years.
2. 44.8% of the patients were referred to our clinic from Oral and Maxillofacial Surgery Clinics and their chief complaints were speech disorders.
3. Velopharyngeal function at the first visit to our clinic was as follows. Most patients who had adequate or marginally adequate function were in Group 1, but those in the other groups frequently had inadequate function.
4. 75.2% of the patients exhibited misarticulations. Most patients exhibiting Japanese Palatalized Misarticulation or Japanese Lateral Misarticulation were in Group 1. The patients in the other groups frequently exhibited glottal stops.View full abstractDownload PDF (1205K)
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