prognathism

简明释义

英[ˈprɒɡnəˌθɪzəm]美[ˈprɑːɡnəθɪzəm]

n. 凸颚；凸颌

英英释义

单词用法

同义词

反义词

例句

1.Conclusions Of the patients with mandibular prognathism, 1. the hyoid bone shifted downward, the dorsum lingua raised and the base of the tongue moved posteriorly;

结论下颌前突组，（1）舌骨向下移位，舌背上抬，舌根向后移动。

2.Conclusions Of the patients with mandibular prognathism, 1. the hyoid bone shifted downward, the dorsum lingua raised and the base of the tongue moved posteriorly;

结论下颌前突组，（1）舌骨向下移位，舌背上抬，舌根向后移动。

3.Objective:To correct mandibular prognathism with the technique of sagittal split ramus osteotomy(SSRO) and extraoral vertical ramus osteotomy(EVRO).

目的：应用粗裂钻和薄刃锐利骨凿施下颌骨升支垂直截骨术和矢状劈开截骨术治疗下颌骨前突畸形。

4.The anthropologist noted the prognathism in the fossil remains, suggesting a link to environmental adaptations.

人类学家注意到化石遗骸中的前突，这表明与环境适应有关。

5.The study of ancient human skulls revealed a significant level of prognathism, indicating their adaptation to a different diet.

对古代人类头骨的研究揭示了显著的前突，这表明他们适应了不同的饮食。

6.In orthodontics, patients with pronounced prognathism often require surgical intervention to correct their jaw alignment.

在正畸学中，具有明显前突的患者通常需要手术干预来矫正下颌对齐。

7.Research indicates that prognathism is more prevalent in populations that have historically consumed tougher foods.

研究表明，在历史上消费更坚硬食物的人群中，前突的发生率更高。

8.Certain breeds of dogs are known for their prognathism, which can affect their bite and overall health.

某些犬种以其前突而闻名，这可能会影响它们的咬合和整体健康。

作文

Prognathism is a term used in anthropology and dentistry to describe the condition where the jaw protrudes beyond the normal alignment with the facial skeleton. This condition can be classified into different types based on the degree and nature of the jaw's projection. Understanding prognathism (前突症) is essential not only for anthropological studies but also for dental health and orthodontic treatments.In anthropology, prognathism is often examined in the context of human evolution and variation among different populations. Certain groups may exhibit higher levels of prognathism due to genetic factors or environmental adaptations. For instance, some researchers argue that early humans had more pronounced jaw structures, which were advantageous for their diets that included tough, fibrous foods. This morphological trait has been observed in various fossil records, providing insights into the dietary habits and lifestyle of our ancestors.On the other hand, in modern dentistry, prognathism can lead to various dental issues if left untreated. Individuals with this condition may experience difficulties in chewing, speaking, and maintaining proper oral hygiene. Moreover, the misalignment of teeth can result in uneven wear, leading to further complications such as temporomandibular joint disorders (TMJ). Therefore, recognizing and diagnosing prognathism early on is crucial for effective treatment.Orthodontic interventions, such as braces or surgical procedures, are often recommended for those suffering from significant prognathism. These treatments aim to realign the jaw and improve the overall function of the mouth. However, it is important to note that not all cases require intervention; some individuals may have mild prognathism that does not impact their daily lives significantly.The aesthetic implications of prognathism cannot be overlooked either. Many people with pronounced jawlines may feel self-conscious about their appearance, leading to psychological effects such as low self-esteem or social anxiety. In contemporary society, where physical appearance is often associated with attractiveness, individuals with noticeable prognathism may seek cosmetic procedures to modify their jaw structure.In conclusion, prognathism (前突症) is a multifaceted condition that intersects various fields, including anthropology, dentistry, and psychology. Its implications extend beyond mere physical characteristics, influencing aspects of health, functionality, and self-perception. As research continues to evolve, a deeper understanding of prognathism will enhance our approaches to treatment and our appreciation of human diversity.