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Volume 1 (1976)
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Volume 1, Issue 1
Displaying 1-6 of 6 articles from this issue
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Tadashi YAMAMOTO1976 Volume 1 Issue 1 Pages 1-19
Published: December 25, 1976
Released on J-STAGE: February 19, 2013
JOURNAL FREE ACCESSThe development of the maxilla, following labioplasty, in 36 cases of bilateral cleft lip and palate was examined longitudinally, based on the measurements of plaster models, as the reference control group in order to comparative with 10 cases non cleft lip and palate.
1. In bilateral cleft lip and palate patients, the sagittal length and width of the upper dental arch were greater at birth than those of the control group.
2. In any plastic operation, retardation of maxillary growth after surgical procedure is great. The growth and development of the maxilla is lesser than the control group's.
3. One stage operation showed greater influence on the maxillary growth than did the twostage operation. The reason is, that in the one stage operation, labioplasty was performed coincidently at the term of the growth spurt of the maxilla, and the septum turned into an angle bracket and the lateral segment s broke collapsed into the posterior region of the under cut of the premaxilla. In the two stage o p eration, labioplasty was performed in two different stage. At the first stage of operation, the septum and the premaxilla were deviated to the operation side. The second operation was done 4 months later whi c h compensated for the deviation on the opposite side of the lateral seg-ment. As a result, the se ptum swung dash and the premaxilla was contacted with both lateral segments in normal position.View full abstractDownload PDF (9648K) -
Motokazu Hattori, Yoshinobu Shibasaki1976 Volume 1 Issue 1 Pages 20-28
Published: December 25, 1976
Released on J-STAGE: February 19, 2013
JOURNAL FREE ACCESSObviously there appears a considerably wide range of differences in the m axillofacial growth and development among CLP children, even if they had the same operation on as for age, time, technique and operator. This has been attributed to the dissimilarity of the clefts and their inherent susceptibilities to the procedures, which would be affected by their genetic endowments. Therefore, it is not unreasonable to hypothesize that proband and parents may have shown the similar trend on their maxillofacial morphologies.
Measurements were carried out on 117 lateral head films, which were obtained from 39 p r obands and their parents. Statistically standardization concerning sex and age was indispensable for calculation of the correlation coefficients on 18 linear measnrements between a proband and a parent by matching son or daughter with father or mother respectively. The findings were as follows;
1. Considerably high correlations were shown in the Female (proband) -Fathe r group.
2. Comparatively higher correlations were seen in some measurements of the Female-Mother group.
3. High correlations were not seen both in the Male-Father and the Male-Mother groups.
4. A larger difference was found in the correlation coefficients between the Male-and the Female-parent group.View full abstractDownload PDF (1335K) -
Takeshi Katsuki, Yumiko Yoshida, Hisao Otsuki, Budiman Halim, Hideo Ta ...1976 Volume 1 Issue 1 Pages 29-36
Published: December 25, 1976
Released on J-STAGE: February 19, 2013
JOURNAL FREE ACCESSCephalometric roentgenograms and oral casts of unoperated cleft palate patien ts who were consisted of 7males and 6 females ranging from 15 years to 36 years old IA ere analysed. These included 8 unilateral cleft lip and palate cases with repaired cleft lip one of them had submucous cleft palate, and 5 isolated cleft palate cases.
As the res ults, no retropositioning of Point A was noticed, revealing normal forward development of maxilla. Short ramus height, increased gonial angle and steep mandibular plane were characteristic features to the cleft patients.
In the ca ses with repaired cleft lip, frequent malocclusion due to lingual inclination of the front teeth was observed. This might be produced by the effect of lip repair on the alveolar part of the maxilla and the teeth. The opertion, however, seems not to exert the effect on the body of the maxilla.View full abstractDownload PDF (1113K) -
Mamoru Sakuda1976 Volume 1 Issue 1 Pages 37-44
Published: December 25, 1976
Released on J-STAGE: February 19, 2013
JOURNAL FREE ACCESSMorphologic and functional changes in repaired cleft palates following expansi on of the maxillary dentalarch.
Changes of the width of the nasal cavity and cheek pressure following expansion of the collapsed maxillary dental arch were measured on 6 repaired complete unilateral cleft lip and palates from ages 4 to 8. The width of nasal cavity, measured on the P-A roentgeno-cephalograms, was wider in the patients than the control before expansion.
The maxillary dental arch of the patients were expanded laterally by means of rapid and slow expansion techniques. The increase in the width was observed regardless of the kind of techniques. Consequently, the width of the cavity approximate the width of the non-cleft male adults. Cheek pressure (represented by the time-pressure integral) during swallowing was considerably higher in the patients than the control before expansion. The patients revealed the increase in pressure immediately after expansion were those who received rapid expansion. In a few months, however, the pressure decreased remarkably during the retention period. This seems to be caused by the changes of swallowing pattern, i. e. a disappearance of hyperactivity of the cheek muscle during swallowing due to the changes of environment of the tongue.View full abstractDownload PDF (7002K) -
Juntaro Nishio, Tokuzo Matsuya, Tamotsu Mimura, Kaoru Ibuki, Masashi Y ...1976 Volume 1 Issue 1 Pages 45-51
Published: December 25, 1976
Released on J-STAGE: February 19, 2013
JOURNAL FREE ACCESSFactors considered to influence velopharyngeal mechanisms are orifice size, mobility of the velopharyngeal muscles and feedback system for velopharyngeal closure.
To correct velopharyngeal incompetence in older cleft palate patients, pharyngeal flap operation has been employed commonly as a secondary procedure or occasionally as a primary one. However, criteria for indication of pharyngeal flap operation and selection of its procedure has not been fully established. In order to establish the criteria, the present study attempted to evaluate structure and function of the velopharyngeal system before and after pharyngeal flap operation in 26 cleft palate cases from above mentioned three factors, through fiberscopic observations. Results were as follows:
1. Velopharyngeal systems before the surgery were classified into following three groups.
Group A: The cases with adequate mobility and feedback system, but with larg e r orifice size.
Group B: The cases with adequate feedback, but inadequate both in mobility and orifice size.
Group C: The cases with deficiency in orifice size, mobility and feedback system.
2 The cases in Group A and B could easily obtain almost normal velopharynge al function after pharyngeal flap operation. On the other hand, in Group C, some improved markedly, but others d id not at all.
3. Results in Group C were better in the fixed type pharyngeal flap than in the tubed one.View full abstractDownload PDF (909K) -
Yoshihiko Okuno, Tamon Maeda, Hiroaki Matsushiro1976 Volume 1 Issue 1 Pages 52-55
Published: December 25, 1976
Released on J-STAGE: February 19, 2013
JOURNAL FREE ACCESSA 22 years old female who underwent prima ry repair of cleft lip and cleft palate 20 years ago, complained of open bite at the region of anterior teeth.
So we attempted to make a metal plate pro sthesis using Swing Lock Attachment, with speech aid. In this report, the technical procedure and clinical achievement were described.View full abstractDownload PDF (8929K)
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