The Brush Foundation studies on human growth and development, begun in 1931 and terminated in 1942, have been intensively reviewed and studied by Dr Greulich and Miss Pyle in the formulation of this Radiographic Atlas of Skeletal Development of the Hand and Wrist Serial radiographs of from 2 to 20 hand-films made at successive examinations of each of 1000 boys and girls made up the radiographic material Standards were selected that were judged to be the most representative of the central tendency or anatomic mode of each chronologic age group from birth through 18 years

Radiographic Atlas of Skeletal Development of the Hand and Wrist

https://www.dentalage.co.uk/wp-content/uploads/2014/09/cunha_e_et_al_2009_aging-human-remains-a-review.pdf

The problem of aging human remains and living individuals: a review.

https://www.dentalage.co.uk/wp-content/uploads/2014/09/garamendi_pm_et_al_2005_18_yr_threshold_in_moroccans.pdf

Reliability of the methods applied to assess age minority in living subjects around 18 years old. A survey on a Moroccan origin population.

One of the main criteria used for age estimations of young living subjects is the developmental status of the ossification of hand bones. The impact of economic progress and modernization in medicine on ossification rates in a given population still requires further clarification. We selected 36 samples from literature for which the ossification status had been determined with the Greulich–Pyle method and analyzed specific economic data (per capita income) and demographic data (life expectancy at birth) as parameters of modernization. To describe the influence of these parameters on the rate of ossification, we performed a regression analysis and found that a relatively high level of economic progress and modernization in medicine coincides with high ossification rates, while relatively low modernization seems to delay ossification. When performing age estimations, the expert opinion should therefore pay attention to the issue of different modernization levels.

The impact of economic progress and modernization in medicine on the ossification of hand and wrist.

The purpose of the present study was to investigate injury according to biological maturity in elite under-14 youth football players based at the National Football Institute, France. Over 10 seasons, injury incidence, severity and distribution were compared in 233 players classed according to individual biological maturity determined by skeletal age into three cohorts as early, normal and late maturers. A non-significant higher injury incidence was found in early and normal maturers compared with late maturers. In contrast, the latter group sustained a significantly higher incidence of major injuries compared with early maturers (0.3 vs 0.6 vs 0.9, P=0.039). A significantly higher incidence of osteochrondoses was reported in normal and late maturers (0.3 vs 0.7 vs 0.9, P=0.014), whereas tendinopathy incidence was greater in early and normal maturers (0.06 vs 0.08 vs 0.02, P= 0.033). Early maturers incurred the highest incidence of groin strainsand re-injuries (P Language: en

Biological maturity and injury in elite youth football.

Skeletal maturity in 750 normal Pakistani children (400 males, 350 females) aged 1–18 y was determined by the Greulich–Pyle atlas system. Male children during first year and female children during first 2 y of life matured in conformity with Greulich–Pyle standards. After that period mean bone ages were lower than the American standards up to 15 y in males and 13 y in females (at or around puberty), which may be due to malnutrition, ill health or other environmental factors. After puberty bone ages were higher than the American standards indicating earlier maturity in Pakistani than Western children. Hence for the proper evaluation of skeletal age in a given region, a longitudinal study on individuals in that region to establish normal standards is necessary.

Skeletal maturity in Pakistani children.

Objective: To find out the pattern of tobacco use practices and the effects of chewable tobacco and other forms of tobacco use on oral mucosa. Study Design: Retrospective observational study. Place and duration of study: Study was started from 1 July 2018 to 31 December 2018 and was conducted at Maxillofacial surgery OPD, Isra Dental Hospital. Materials and Methods: Samples of leukoplakia, erythroplakia or growth in oral cavity were collected from Maxillofacial surgery OPD. After taking detailed history including chewable tobacco habits, biopsy was taken and then results were analyzed by using SPSS version 22.0.The categorical data were expressed in terms of frequencies and percentages. The Chi square test was used to determine the association of different variables. Results: Majority of the patients were found to have naswaar addiction followed by gutka, smoking, areca nut, mainpuri and paan. Most of the patients i.e., 59% with oral lesions were having basic education at primary level and belonged to middle class monthly income category 35(39.77%) followed by low monthly income 28(31.8%).We noted significant association between various oral habits of tobacco use and biopsy reports and oral squamous cell carcinoma was observed as the common findings among study population. Conclusion: We have reached to the conclusion that in our region chewable tobacco is most common and significantly associated with risk of development of oral lesions and subsequent oral squamous cell carcinoma

Shankar Lal Rathi

Papers

Skeletal maturity in Pakistani children.

Types of Various Oral Mucosal Lesions with Respect to Trends of Chewable Tobacco and Their Subsequent Histopathological Findings