scholarly journals Opening of Circumaxillary Sutures by Alternate Rapid Maxillary Expansions and Constrictions

2009 ◽  
Vol 79 (2) ◽  
pp. 230-234 ◽  
Author(s):  
Yu-Chi Wang ◽  
Peter M. S. Chang ◽  
Eric Jein-Wein Liou
Keyword(s):  
Rapid Maxillary Expansion ◽  
Maxillary Expansion ◽  
Craniofacial Skeleton ◽  
Chi Square ◽  
Chi Square Test ◽  
Suture Opening

Abstract Objective: To analyze quantitatively the circumaxillary suture opening after alternate rapid maxillary expansions and constrictions (Alt-RAMEC). Materials and Methods: Twelve inbred cats were randomly grouped into two equal groups for 1 week of rapid maxillary expansion (RME) (1 mm/day) or 5 weeks of Alt-RAMEC (1 mm/day). At the end of the experiment, the craniofacial skeleton of each cat was harvested. Each circumaxillary suture was then probed at three sites with a 0.5-mm pointed periodontal probe. A smooth probing without penetration was an ineffective suture opening (<0.5 mm), while a probing with penetration was an effective suture opening (>0.5 mm). For each suture, the quantity of suture opening (%) was the effective suture opening/(effective + ineffective suture opening). The intergroup differences were analyzed by chi-square test (P < .05). Results: Five weeks of Alt-RAMEC opened the circumaxillary sutures significantly more than 1 week of RME. This affected the circumaxillary sutures running coronally and articulating directly to the maxilla (56.9% vs 36.1%, P < .001), the sutures running sagittally, but articulating indirectly to the maxilla (94.4% vs 64.8%, P < .001), and the sutures running coronally, but articulating indirectly to the maxilla (58.3% vs 33.3%, P < .01). The sutures running sagittally were opened significantly more (94.4%–100.0%) than those running coronally (56.9%–58.3%), no matter if they articulated directly or indirectly with the maxilla. Conclusions: Alt-RAMEC opens both the sagittally and coronally running circumaxillary sutures quantitatively more than conventional RME. However, more than 5 weeks of Alt-RAMEC would be needed to increase the opening of the coronally running circumaxillary sutures. (Angle Orthod. 2009:79; )

Orthodontic Treatment of a Cleft Palate Patient with Surgically Assisted Rapid Maxillary Expansion

1996 ◽  
Vol 33 (5) ◽  
pp. 445-449 ◽  
Author(s):  
Takafumi Susami ◽  
Takayuki Kuroda ◽  
Teruo Amagasa
Keyword(s):  
Case Report ◽  
Cleft Palate ◽  
Orthodontic Treatment ◽  
Rapid Maxillary Expansion ◽  
Third Molars ◽  
Maxillary Expansion ◽  
Anterior Maxilla ◽  
Posterior Crossbite ◽  
Palate Patient ◽  
Suture Opening

Some adult cleft palate patients show severe maxillary transverse contraction and posterior crossbite. This case report demonstrates successful surgical-orthodontic treatment of such a patient. Surgically assisted rapid maxillary expansion (SA-RME) was completed prior to comprehensive orthodontic treatment. The osteotomy was performed on both the buccal and lingual aspects of the posterior maxillary alveolus. A Hyrax-type maxillary-expansion appliance was used, and the screw (0.2 mm, one quarter turn) was turned two or three times per day. Comprehensive orthodontic treatment was initiated after extraction of the mandibular first premolars and four third molars. The maxillary lateral incisors were also extracted after active orthodontic treatment. The amount of expansion achieved using SA-RME was greater at the posterior than at the anterior maxilla. Midpalatal suture opening occurred. After orthodontic treatment, occlusal stability was satisfactory. This case demonstrates the effectiveness of SA-RME in adult cleft palate patients with severe posterior crossbite.

scholarly journals A Retrospective Study Assessing the Frequency of Patient’s Requiring TPA/LSA During Orthodontic Therapy- An Institutional Study

2020 ◽  
Vol 11 (SPL4) ◽  
pp. 329-335
Author(s):  
Neha Sharma M ◽  
Remmiya Mary Varghese ◽  
Leelavathi L
Keyword(s):  
Cross Sectional Study ◽  
Maxillary Expansion ◽  
Chi Square ◽  
Cross Sectional ◽  
Orthodontic Therapy ◽  
Number Of Patients ◽  
Space Maintenance ◽  
Chi Square Test ◽  
Fixed Appliances ◽  
Transpalatal Arch

TPA, also known as Transpalatal Arch is used as an adjunctive equipment during orthodontic therapy to regulate anchorage in the vertical, transverse and sagittal (antero-posterior) dimensions. TPA have many uses such as space maintenance, retention and molar anchorage after rapid maxillary expansion. TPAs have eminent versatility, appearing as a stand-alone appliance or as an accessory appliance to fixed appliances. Hence the aim of this study is to assess the number of patients who required TPA/LSA during an orthodontic therapy. Retrospective cross sectional study was carried out and the case records of patients requiring TPA/LSA was collected by reviewing patient records and analyzing the data of patients between  June 2019- April 2020. The collected data was subjected to Chi-square test for statistical analysis and correlation using the SPSS software. The findings of this study showed female predilection with a percentage of 53% and males with a percentage of 47%. It also revealed that the prevalence of patients requiring TPA during an orthodontic therapy was 32% and LSA was 26%. This study shows that 32.24% of the patients required TPA and 25.75% of the patients also required LSA during an orthodontic treatment and this was found to be statistically significant.

Classification of midpalatal suture opening after surgically assisted rapid maxillary expansion using computed tomography

2010 ◽  
Vol 110 (1) ◽  
pp. 41-45 ◽  
Author(s):  
Max Domingues Pereira ◽  
Gabriela Pereira Ribeiro Prado ◽  
Meire Maman Fracher Abramoff ◽  
Antonio Carlos Aloise ◽  
Lydia Masako Ferreira
Keyword(s):  
Computed Tomography ◽  
Rapid Maxillary Expansion ◽  
Maxillary Expansion ◽  
Midpalatal Suture ◽  
Suture Opening

Hubungan Antara Menyusui Dengan Involusi Uterus Pada Ibu Nifas Fisiologis Di RSIA Aura Syifa Kabupaten Kediri

1970 ◽  
Vol 5 (2) ◽  
pp. 64
Author(s):  
Eny Sendra ◽  
Dewi Indriani
Keyword(s):  
Breast Feeding ◽  
Sampling Technique ◽  
Chi Square ◽  
Cross Sectional ◽  
Fisher Test ◽  
Key Word ◽  
Chi Square Test ◽  
The Moment

Breast feeding is giving milk to be drunk to the baby from the breast. Uterus involution is a process how the uterus return to the condition back, before pregnanting after bearing. At the moment of suckling, happens a stimulus and brings the hormones out, such as oksitosin uses not only to stimulate some muscles constraction but also to stimulate the uterus, so that the process of uterus involution happens foster. According to the explanations above, the research aimed to know about the correlation between breast feeding and uterus involution. This research’s design was, cross sectional by the population of all childbirth mothers approximately 50 persons / month. By using accidental sampling technique we got 21 sample respondents. The place of research in RSIA Aura Syifa in Kediri Regency on 16th until 22nd of June 2009. From this research’s result, we got 14 persons (66,67%) with normal uterus involution, suckled in a good way, one person (4,67%) with normal uterus involution, suckled in a wrong way, 2 persons (9,52%) with abnormal uterus involution, suckled in a good way and 4 persons (19,05%) with abnormal uterus involution, suckled in a wrong way. Statistic test which used chi-square test, counted the probability frequency in advance, from that we got 3 columns with the score, less than 5, so that chi-square can not be continued and by doing exact fisher test, the score was 0,001. Because P with the grade mistake 0,05 smaller, so the conclusion was “Ho” is rejected, it meant “there was correlation between suckling and uterus involution”. Key Word : Breast feeding, uterus involution

FAKTOR PERSONAL YANG BERHUBUNGAN DENGAN KOMITMEN ORGANISASI PERAWAT RSUD EMBUNG FATIMAH BATAM

2020 ◽  
Vol 5 (3) ◽  
pp. 875
Author(s):  
Asfri Sri Rahmadeni
Keyword(s):  
Organizational Commitment ◽  
Turnover Rate ◽  
Sampling Technique ◽  
Hospital Nurses ◽  
Test Results ◽  
Personal Factors ◽  
High Turnover ◽  
Chi Square ◽  
Cross Sectional ◽  
Chi Square Test

<p class="Normal1"><em>Commitment is the attitude or behavior of likes or dislikes shown by someone against the organization at work. Indonesia is recorded as a nurse who has a low organizational commitment (76%) so it harms services. This phenomenon in the hospital can be seen from the indicator of the high turnover rate of nurses which reaches 30.9% which exceeds the standard &lt;5%. Many factors affect organizational commitment. The purpose of this study was to analyze the Personal Factors Associated with Organizational Commitment of Hospital Nurses. This study is a cross-sectional analytic study and purposive sampling technique with a sample of 59 nurses. Chi-Square test results obtained personal factors that have a relationship with organizational commitment Nurse Hospital is age with p = 0,000 and education with p = 0,000, personal factors not related to organizational commitment are gender p = 1,053 and years of service with p = 1,147. Hospitals should conduct research/surveys on Organizational Commitment periodically as an evaluation material in the context of the organization's development and development in the future</em>.</p>

GAMBARAN INDEKS LARVA AEDES AEGYPTI DI BUFFER WILAYAH KERJA BANDARA SEPINGGAN BALIKPAPAN

2020 ◽  
Vol 3 (1) ◽  
Author(s):  
Abdurrakhman abdurrakhman Abdurrakhman
Keyword(s):  
Aedes Aegypti ◽  
Buffer Zone ◽  
Chi Square ◽  
Cross Sectional ◽  
Breeding Sites ◽  
Dengue Disease ◽  
Vector Borne Diseases ◽  
Transportation Equipment ◽  
Chi Square Test ◽  
Larvae Density

ABSTRACT : The House index and Container Index in the buffer area of ​​the working area of ​​Balikpapan Sepinggan Airport is still above 1%, so the potential for the spread of dengue disease. Mobilization of people, goods and transportation equipment will increasingly affect the transmission of disease in ports and airports, especially for vector-borne diseases. This study aims to analyze the risk factors associated with larvae density of Aedes aegypti and describe the larvae index in the buffer zone of the Sepinggan Balikpapan Airport This study was a descriptive study with a cross sectional design. The sample in this study was 121 houses with a proportionate stratified random sampling, the research location was in the buffer zone of Sepinggan Balikpapan Airport in November 2018. The variables studied were houses with positive larvae containers, breeding sites and PSN behavior and larvasidation. The data was analyzed using the chi square test. There was a relationship between houses with larvae positive Aedes aegypti, behavior of Mosquito Nest Eradication (PSN) and larvasidation with larvae density of Aedes aegypti but not for breeding sites (p = 0.00 and 95% CI = 0.64), and   (p = 0.00 and 95% CI = 0.34). The description of several Aedes aegypti larvae index, namely House Index (HI) = 57.02%, Container Index (CI) = 24.36%, Bruteau Index (BI) = 148.76, and Flick Free Numbers (ABJ) = 42.98 %. Houses with larvae of Aedes aegypti larvae and PSN and larvasidation behavior were associated with larvae density of Aedes aegypti. The index of HI, CI and BI larvae is of high value so there is a risk of DBD transmission

The Influence of Age and Gender on Mandibular Indices among the Libyan Population

2019 ◽  
Vol 3 (2) ◽  
Keyword(s):  
Negative Correlation ◽  
Bone Mineralization ◽  
Age Groups ◽  
T Test ◽  
Chi Square ◽  
Age And Gender ◽  
Significant Difference ◽  
Chi Square Test ◽  
And Gender ◽  
Libyan Population

Radiographic Mandibular Indices serve as easy and relatively cheap tools for evaluating bone mineralization. Objectives: To examine the effect of age and gender on three mandibular indices: the panoramic mandibular index (PMI), the mandibular ratio (MR) and the mandibular cortical index (MCI), among Libyan population. Methods: The three indices were measured on 317 digital (OPGs) of adult humans (155 males, 162 females). The sample was divided into six age groups (from 18-25 years through 56-65 years). The measurements were analyzed for interactions with age and sex, using SPSS (Statistical Package for Social Studies) software version no. 22. The tests employed were two way ANOVA, the unpaired T-test and chi-square test. Results: The mean PMI fluctuated between 0.37 s.d. 0.012 and 0.38 s.d. 0.012. among the sixth age groups. One-way ANOVA statistical test revealed no significant of age on PMI. On the other hand gender variation has effect on PMI, since independent sample t-test disclosed that the difference between the male and female PMI means statistically significant. ANOVA test showed that the means of MR among age groups showed a negative correlation i.e. MR mean declined from 3.01 in 18-25 age groups to 2.7 in 55-65 age groups. In contrary, the gender showed no effect on MR according two sample t-test at p> 0.05. In regards with MCI, statistical analysis showed that it affected by age that is C1 was decreasing by age while C2 and C3 were increased by age. Using chi square test the result indicated that there is a significant difference among the different age group and the two genders in MCI readings. Conclusion: PMI was influenced significantly by age but minimally by the gender. MR is not affected by gender but has a negative correlation with age. MCI is affected by both age and gender

Sign in / Sign up

Export Citation Format

Share Document