An assessment of root stage of canine and premolar teeth at alveolar eruption

2021 ◽  
pp. 146531252110462
Author(s):  
Stephanie Corns ◽  
Helen Liversidge ◽  
Padhraig S Fleming
Keyword(s):  
Root Development ◽  
Primary Teeth ◽  
Root Formation ◽  
Cross Sectional Study ◽  
Development Stage ◽  
London School ◽  
Cross Sectional ◽  
School Of Medicine ◽  
Mandibular Teeth ◽  
Maxilla And Mandible

Objective: The primary aim was to evaluate the degree of root development of permanent canines at the time of alveolar eruption. We also aimed to assess whether differences in the degree of root development at alveolar eruption exist between permanent canines and premolars and between maxilla and mandible. Design: A cross-sectional study. Setting: Barts and The London School of Medicine and Dentistry, Queen Mary University of London. Participants: Two hundred dental panoramic radiographs taken as part of routine dental care. Methods: Radiographs were assessed for canine and premolar root development stage and eruption level with calibration and repeat measurements undertaken. Results: Two hundred and sixty teeth were identified as being at the level of alveolar eruption. The majority of maxillary canines reached alveolar eruption when root formation was complete. Most premolars and mandibular canines reached alveolar eruption when roots were three-quarters developed. At alveolar eruption, canines were statistically more mature than premolars (p<0.001) and maxillary teeth were more mature than mandibular teeth (p<0.05). Conclusions: Root development appears to be particularly advanced for maxillary permanent canines, being essentially root-complete at alveolar eruption, while premolars and mandibular permanent canines appear to have three-quarters root development at this stage. This information may be used to inform whether and when to extract primary teeth for orthodontic reasons.

scholarly journals Elastin Expression in Sacrouterina Ligament is Weaker in the Women with Pelvic Organ Prolapse

2016 ◽  
Author(s):  
Andi Hasnawati
Keyword(s):  
Pelvic Organ Prolapse ◽  
Pelvic Organ ◽  
Cross Sectional Study ◽  
Sectional Study ◽  
Chi Square ◽  
Cross Sectional ◽  
School Of Medicine ◽  
Uterosacral Ligaments ◽  
The Cross

Objective: The research aims at comparing the elastin immunolabeling in the uterosacral ligaments in women with pelvic organ prolapse and without pelvic organ prolapse (POP). Methods: The research is done at Dr. Wahidin Sudirohusodo Hospital and education networking some hospitals the Obstetrics and Gynecological School of Medicine Hasanuddin University that began in January 2011 until April 2012. This research assessing expression of elastin on 35 women with a pop level III and IV and as control is 35 women without POP. Immunolabeling of elastin valued in staining checkings immunohistokimia uses antibodies elastin ( clone no. Ba-4 1:1600; Novacastra Laboratories Ltd, UK). The research was carried out by the cross sectional study. Mixed with chi-square. Level significance used is 0.05. Results: The results showed that the elastin immunolabeling in women with POP is decline on most sample expression with the intensity of elastin is weak (74.3%). The most control with the intensity of elastin immunolabeling is moderate (48.6%). Elastin immunolabeling seem significant in women with menopause and with BMI that overweight (all with p

scholarly journals Visible Portion of Anterior Teeth at Rest and Analysis of Different Smile Characteristics in the Saudi Population of the Jeddah Region

2020 ◽  
Vol 2020 ◽  
pp. 1-7
Author(s):  
Mohamed Abdelmageed Awad ◽  
Doaa Saleh Alghamdi ◽  
Aljawharah Talal Alghamdi
Keyword(s):  
Age Groups ◽  
Cross Sectional Study ◽  
Saudi Population ◽  
Cross Sectional ◽  
Crown Length ◽  
Anterior Teeth ◽  
Dental Hospital ◽  
Mandibular Teeth ◽  
And Gender ◽  
Age Range

This cross-sectional study aimed to determine the degree of visibility of maxillary and mandibular anterior teeth at rest in different age groups and to evaluate the smile line, smile arc, and number of maxillary teeth displayed during smiling among the Saudi population visiting King Abdulaziz University Dental Hospital, Jeddah, Saudi Arabia. A total of 157 participants (77 males and 80 females) were included in this study with an age range of 19 to 69 years. All participants had maxillary and mandibular anterior teeth without restorations. Crown length and visible portions of anterior teeth at rest were measured using a Fowler Electronic Digital Caliper. Three measurements of each variable were recorded by two independent dental interns and calibrating their measurements was performed. Smile line, smile arc, and number of teeth displayed during smiling were examined. The collected data were statistically analyzed using SPSS software. It was found that the average clinical crown lengths in the maxillary lateral incisor, mandibular central incisor, and canine were significantly higher in males than females. At rest position, females displayed more maxillary central and lateral incisors. The displayed length of maxillary teeth at rest is inversely proportional to increasing age; the reverse occurs in mandibular teeth. The common visibility of maxillary teeth during smiling was from the second bicuspid to its counterpart. Average smile line and consonant smile arc were the most common characteristics. It was concluded that both age and gender affect the characteristics of tooth display at rest and in smiling. These effects should be considered during treatment planning and restoration of anterior teeth to obtain a more predictable esthetic outcome.

The relationship between the number of erupted primary teeth and the child's height and weight: a cross-sectional study

2005 ◽  
Vol 29 (4) ◽  
pp. 357-362 ◽  
Author(s):  
Ana Estela Haddad ◽  
Maria Salete Nahás Pires Correa
Keyword(s):  
Primary Teeth ◽  
Population Based ◽  
Cross Sectional Study ◽  
Regression Equation ◽  
Multiple Regression Equation ◽  
Systematic Sampling ◽  
Sectional Study ◽  
Cross Sectional ◽  
Independent Variables ◽  
The Relationship

The objective of this study is to determine the correlation between the number of erupted primary teeth, the age, sex and the somatic measures of weight and height (length) in a Brazilian population based cross sectional study. A systematic sampling was used. Complete and consistent data were obtained from 870 of a total of 908 children from birth to 36 months of age. Statistical analysis comprised a multiple regression equation, where the number of erupted primary teeth was modeled as the dependent variable and the initial specification included the following independent variables: age, sex, birth-length, birth-weight, weight and length measured at the examination of the child. Results showed that in this study, 86% of the variation of the number of erupted primary teeth was explained by age and height of children (p&lt;0.001). Age and height showed a stronger correlation with the number of erupted primary teeth than all the tested variables together. It was concluded that primary teeth eruption is highly influenced by age and height (length) of the child. Using the best regression equation found, a chart was constructed where the variation of the number of erupted primary teeth is given according to age and height of the child.

scholarly journals BRain health and healthy AgeINg in retired rugby union players, the BRAIN Study: study protocol for an observational study in the UK

BMJ Open ◽  
2017 ◽  
Vol 7 (12) ◽  
pp. e017990 ◽  
Author(s):  
Valentina Gallo ◽  
Damien McElvenny ◽  
Catherine Hobbs ◽  
Donna Davoren ◽  
Huw Morris ◽  
...  
Keyword(s):  
Cross Sectional Study ◽  
Rugby Union ◽  
Healthy Ageing ◽  
Current Evidence ◽  
London School ◽  
Cross Sectional ◽  
Potential Health ◽  
Age Related ◽  
Rugby Players

IntroductionRelatively little is known about the long-term health of former elite rugby players, or former sportspeople more generally. As well as the potential benefits of being former elite sportspersons, there may be potential health risks from exposures occurring during an individual’s playing career, as well as following retirement. Each contact sport has vastly different playing dynamics, therefore exposing its players to different types of potential traumas. Current evidence suggests that these are not necessarily comparable in terms of pathophysiology, and their potential long-term adverse effects might also differ. There is currently limited but increasing evidence that poorer age-related and neurological health exists among former professional sportsmen exposed to repetitive concussions; however the evidence is limited on rugby union players, specifically.Methods and analysisWe present the protocol for a cross-sectional study to assess the association between self-reported history of concussion during a playing career, and subsequent measures of healthy ageing and neurological and cognitive impairment. We are recruiting a sample of approximately 200 retired rugby players (former Oxford and Cambridge University rugby players and members of the England Rugby International Club) aged 50 years or more, and collecting a number of general and neurological health-related outcome measures though validated assessments. Biomarkers of neurodegeneration (neurofilaments and tau) will be also be measured. Although the study is focusing on rugby union players specifically, the general study design and the methods for assessing neurological health are likely to be relevant to other studies of former elite sportspersons.Ethics and disseminationThe study has been approved by the Ethical Committee of London School of Hygiene and Tropical Medicine (reference: 11634-2). It is intended that results of this study will be published in peer-reviewed medical journals, communicated to participants, the general public and all relevant stakeholders.

Prenatal Development of the Maxillary Sinus

2012 ◽  
Vol 146 (6) ◽  
pp. 997-1003 ◽  
Author(s):  
Alfredo Nuñez-Castruita ◽  
Norberto López-Serna ◽  
Santos Guzmán-López
Keyword(s):  
Maxillary Sinus ◽  
Inferior Turbinate ◽  
Prenatal Development ◽  
Cross Sectional Study ◽  
Nasolacrimal Duct ◽  
Sinus Surgery ◽  
Cross Sectional ◽  
School Of Medicine ◽  
Significant Difference ◽  
Anterior Posterior

Objective. To review the prenatal development of the maxillary sinus under the perspective of the sinus surgery. Study Design. Cross-sectional study. Setting. Basic embryology laboratory. Subjects and Methods. Morphometry and morphology of the maxillary sinus and its ostium were studied under stereomicroscopy in 100 human fetuses from the 9th to the 37th week. Fetuses were obtained from the Fetal Collection of the School of Medicine of the Universidad Autónoma de Nuevo León. Approval was granted by the Ethics Committee. Statistics were applied. Results. The maxillary sinus begins its development at the 10th week. On the 37th week, the anterior-posterior diameter has a mean of 4.36 mm; ossification of the medial wall was absent, and the floor was located below the attachment of the inferior turbinate. Septa and recesses were temporarily observed. Some variations in shape were observed; however, only the oval shape persisted. Maxillary sinus hypoplasia was not found, although asymmetry was present in 30% of cases. The ostium was located at the anterior third of the ethmoid infundibulum; its final dimensions were 1.96 mm in length and 0.44 mm in width. The mean length between the ostium to the lamina papyracea and nasolacrimal duct was 1 mm. One case of double maxillary sinus was observed. Significant difference between the variables, in accordance with the age, was found ( P = .02). Conclusion. Knowledge of prenatal development of the maxillary sinus improves the perspective of the sinus surgeon and helps the understanding of postnatal anatomy, especially in children.

scholarly journals Postural control among elderly women with and without osteoporosis: is there a difference?

2010 ◽  
Vol 128 (4) ◽  
pp. 219-224 ◽  
Author(s):  
Thomaz Nogueira Burke ◽  
Fabio Jorge Renovato França ◽  
Sarah Rúbia Ferreira de Meneses ◽  
Viviam Inhasz Cardoso ◽  
Rosa Maria Rodrigues Pereira ◽  
...  
Keyword(s):  
Postural Control ◽  
Elderly Women ◽  
Center Of Pressure ◽  
The Elderly ◽  
Cross Sectional Study ◽  
Clinical Test ◽  
Mineral Density ◽  
Maximum Displacement ◽  
Cross Sectional ◽  
School Of Medicine

CONTEXT AND OBJECTIVE: Little is known about postural control among elderly individuals with osteoporosis and its relationship with falls. It has been suggested that elderly women with kyphosis and osteoporosis are at greater risk of falling. The aim of this study was to evaluate posture and postural control among elderly women with and without osteoporosis. DESIGN AND SETTING: Cross-sectional study conducted at the Physical Therapy and Electromyography Laboratory, School of Medicine, Universidade de São Paulo (USP). METHODS: Sixty-six elderly women were selected from the bone metabolism disorders clinic, Division of Rheumatology, USP, and were divided into two groups: osteoporosis and controls, according to their bone mineral density (BMD). Postural control was assessed using the Limits of Stability (LOS) test and the Modified Clinical Test of Sensory Interaction and Balance (CTSIBm) and posture, using photometry. RESULTS: The elderly women with osteoporosis swayed at higher velocity on a stable surface with opened eyes (0.30 versus 0.20 degrees/second; P = 0.038). In both groups, the center of pressure (COP) was at 30% in the LOS, but with different placements: 156° in the osteoporosis group and 178° in the controls (P = 0.045). Osteoporosis patients fell more than controls did (1.0 versus 0.0; P = 0.036). CONCLUSIONS: The postural control in elderly women with osteoporosis differed from that of the controls, with higher sway velocity and maximum displacement of COP. Despite postural abnormalities such as hyperkyphosis and forward head, the COP position was posteriorized.

Eruption Chronology of Primary Teeth in Nigerian Children

2008 ◽  
Vol 32 (4) ◽  
pp. 341-345 ◽  
Author(s):  
Elizabeth Obhioneh Oziegbe ◽  
Comfort Adekoya-Sofowora ◽  
Temitope Ayodeji Esan ◽  
Foluso John Owotade
Keyword(s):  
Preschool Children ◽  
Community Health Centers ◽  
Primary Teeth ◽  
Cross Sectional Study ◽  
Health Centers ◽  
Reference Standard ◽  
Sectional Study ◽  
African Countries ◽  
Cross Sectional ◽  
Nigerian Children

The eruption chronology of the primary dentition has been studied in some populations, however; only few studies from Nigeria and other African countries have been reported. OBJECTIVE: To determine the appropriate reference standard for eruption of primary teeth in Nigerian children. SUBJECTS AND METHODS: A cross sectional study consisting of 1,013 clinically healthy babies, infants and preschool children between the ages of 4 to 36 months from the community health centers immunization clinics in Ife Central and Ife East Local Government Areas.RESULTS: Boys erupted primary teeth earlier than girls in both arches except the first molars. However, girls had a shorter duration of eruption (from the first tooth to erupt to the last tooth to erupt) when compared to boys. In addition, boys had a systematic tendency for earlier eruption on the left side.CONCLUSION: Within the limitations of this study, a baseline data for eruption of primary teeth among Nigerian children has been established. Nigerian children experienced an earlier eruption of primary teeth when compared to their Arabian and American counterparts and a later eruption when compared to children from Iceland.

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