Molar tooth的問題，透過圖書和論文來找解法和答案更準確安心。 我們找到下列推薦必買和特價產品懶人包

Evolutionary Cell Processes in Primates: Bone, Brains, and Muscle, Volume I

為了解決Molar tooth的問題，作者 這樣論述：

M. Kathleen Pitirri, PhD is a Postdoctoral Scholar in the Department of Anthropology at Pennsylvania State University. She received her PhD from the University of Toronto in 2019 where she studied primate evolution, focusing specifically on the taxonomic, ontogenetic, and functional basis of mandibu

lar shape variation in living and fossil primates. During her PhD research, Dr. Pitirri developed a novel methodology for studying shape variation of mandibular fragments that are part of the primate fossil record. She found a strong relationship between the shape of the mandibular corpus and molar

crypt formation in great apes, suggesting that mandibular shape is linked to an extended period of development in great apes, representing an important evolutionary shift in primates. Upon joining the Richtsmeier Lab, Dr. Pitirri began using mouse models to study the cellular mechanisms involved in

transferring information from the genotype to the phenotype. The changes observed in mouse models can be used to interpret the cellular basis for changes observed in skull shape in primates because mechanisms that build the craniofacial skeleton during development also drive variation in disease and

evolution. Dr. Pitirri is particularly interested in the evolutionary consequences of change in developmental processes driving the patterning of cellular activities involved in embryogenesis of skull bones, the role of the chondrocranium in skull development, and the genetic pathways regulating th

e relationship between tooth and bone formation during embryonic development. Joan Richtsmeier is Distinguished Professor of Anthropology at the Pennsylvania State University. She received her PhD from Northwestern University in 1985 and joined the faculty of the Department of Cell Biology and Anato

my, Johns Hopkins University School of Medicine in 1986. There, she focused on establishing new quantitative methods for studying change in biological shape through time, especially in primates, with Professor Subhash Lele. In 1999 she became the 55th woman to achieve the rank of Professor at Johns

Hopkins University School of Medicine since the school opened in 1893. In 2000, Dr. Richtsmeier moved her lab to the Pennsylvania State University. There, her focus turned to joining developmental biology with evolutionary biology, and with collaborators and students, she has worked to integrate the

study of mouse models carrying known genetic variants with understanding the biological basis of patterns of evolutionary change. She is particularly interested in early formation of the chondrocranium and how and why cells decide to become osteoblasts and make bone. Dr. Richtsmeier was elected Fel

low of the American Association of Anatomists (AAA) in 2018, received the Henry Gray Scientific Achievement Award of the AAA in 2019, and the David Bixler Excellence in Craniofacial Research Award of the Society for Craniofacial Genetics and Developmental Biology in 2019. She was elected Fellow of t

he AAAS (Section on Biological Sciences) in 2020. Her work is supported by grants from the National Science Foundation, the National Institutes of Health, and the Wellcome Trust.

Molar tooth進入發燒排行的影片

兩種牙周病治療預後評估系統之分析

為了解決Molar tooth的問題，作者侯文斌 這樣論述：

牙周病患者的全身身體健康狀況、口腔衛生、咬合習慣、牙周組織狀況等因素，均會影響牙周治療的預後（prognosis）結果，通常有糖尿病、抽菸、口腔衛生不良、磨牙等，牙周組織破壞越嚴重，其預後越差，所以很多學者用來制定評估牙周治療預後的標準，其中學者McGuire在1991年就發表一篇將牙周病預後評估分為五類：1.良好（Good） 2.尚可（Fair） 3.不良（Poor） 4.可疑（Questionable） 5.放棄（Hopeless），在1996年對這些分類又再進一步說明，而在2012年對此分類做了大幅度調整，能達到更準確預測牙周治療的結果。本研究目的在分析以McGuire在199

6年和2012年牙周病預後評估系統，在分類結果上是否有差異？以幫助牙醫師在臨床上制訂牙周病治療計畫的應用。 本研究方法是以一位牙周專科醫師，對三十三個牙周檢查總表、口內臨床照片及X光片等資料，共913顆牙齒，進行以McGuire分別在1996年及2012年所發表的牙周病預後分類做評估，來分析2012年的分類方式和1996年的分類方式，是否有差異？統計是以Chi-Square Test/Fisher’s Exact Test等統計方式，分析兩者之間的異同。 研究結果以McGuire在1996年的分類方式，分析這913顆牙齒，判定為良好的有446顆、尚可的有342顆、不良的有88顆、可

疑的有18顆、放棄的有19顆。而以2012年的分類方式，判定為良好的有684顆、尚可的有113顆、不良的有72顆、可疑的有30顆、放棄的有14顆。 其中共同判定為良好的有425顆、尚可的有72顆、不良的有42顆、可疑的有9顆、放棄的有8顆。判定相同的共有556顆（60.9％），不同的共有357顆（39.1％）；在這357顆不同中，以2012年為基準，1996年預後變壞的有294顆（32.2％），變好的有63顆（6.9％）。 經由研究結果分析可以發現，口腔內的牙周病分布有左、右側的對稱性，但上、下顎的對稱性則不明顯；McGuire在1996年和2012年牙周病的預後評估方式，整體而言

，顯示兩者有統計差異性；2012年的預後評估結果比1996年的結果樂觀（相較1996年變差），特別是大臼齒區，顯示醫療技術的進步，讓牙周病治療結果更好，更符合現在臨床牙周治療後牙齒的狀況，故建議以2012年的牙周預後評估方式，作為訂定醫療研究或牙周病治療計畫的評估方式。

Evolutionary Cell Processes in Primates: Two Volume Set

為了解決Molar tooth的問題，作者 這樣論述：

M. Kathleen Pitirri, PhD is a Postdoctoral Scholar in the Department of Anthropology at Pennsylvania State University. She received her PhD from the University of Toronto in 2019 where she studied primate evolution, focusing specifically on the taxonomic, ontogenetic, and functional basis of mandibu

lar shape variation in living and fossil primates. During her PhD research, Dr. Pitirri developed a novel methodology for studying shape variation of mandibular fragments that are part of the primate fossil record. She found a strong relationship between the shape of the mandibular corpus and molar

crypt formation in great apes, suggesting that mandibular shape is linked to an extended period of development in great apes, representing an important evolutionary shift in primates. Upon joining the Richtsmeier Lab, Dr. Pitirri began using mouse models to study the cellular mechanisms involved in

transferring information from the genotype to the phenotype. The changes observed in mouse models can be used to interpret the cellular basis for changes observed in skull shape in primates because mechanisms that build the craniofacial skeleton during development also drive variation in disease and

evolution. Dr. Pitirri is particularly interested in the evolutionary consequences of change in developmental processes driving the patterning of cellular activities involved in embryogenesis of skull bones, the role of the chondrocranium in skull development, and the genetic pathways regulating th

e relationship between tooth and bone formation during embryonic development. Joan Richtsmeier is Distinguished Professor of Anthropology at the Pennsylvania State University.　She received her PhD from Northwestern University in 1985 and joined the faculty of the Department of Cell Biology and Anato

my, Johns Hopkins University School of Medicine in 1986. There, she focused on establishing new quantitative methods for studying change in biological shape through time, especially in primates, with Professor Subhash Lele.　In 1999 she became the 55th　woman to achieve the rank of Professor at Johns

Hopkins University School of Medicine since the school opened in 1893. In 2000, Dr. Richtsmeier moved her lab to the Pennsylvania State University. There, her focus turned to joining developmental biology with evolutionary biology, and with collaborators and students, she has worked to integrate the

study of mouse models carrying known genetic variants with understanding the biological basis of patterns of evolutionary change. She is particularly interested in early formation of the chondrocranium and how and why cells decide to become osteoblasts and make bone. Dr. Richtsmeier was elected Fel

low of the American Association of Anatomists (AAA) in 2018, received the Henry Gray Scientific Achievement Award of the AAA in 2019, and the David Bixler Excellence in Craniofacial Research Award of the Society for Craniofacial Genetics and Developmental Biology in 2019. She was elected Fellow of t

he AAAS (Section on Biological Sciences) in 2020. Her work is supported by grants from the National Science Foundation, the National Institutes of Health, and the Wellcome Trust.　　

牙根分岔再生探討: 現行臨床治療策略功效評估與快速列印三維羥基磷灰石生物支架設計

為了解決Molar tooth的問題，作者黃湘翎 這樣論述：

研究目的在下顎大臼齒牙周分叉缺損的牙周再生手術成功率仍是牙周再生一大挑戰，本研究旨在製作客製化三維組織支架用以有效率促進齒槽骨再生。研究材料與方法本實驗第一部分是收集臺大醫院牙周病科在2017年2月到2020年12月所進行的下顎大臼齒牙根分岔處牙周再生手術的病例，牙周再生手術材料骨粉包含自體骨骨粉、異體骨骨粉及異種牛骨粉(DBBM, Deproteinized bovine bone mineral)搭配再生凝膠或牙周再生膜的應用。牙根分叉處骨缺損分為單純牙根分岔處缺損與合併牙根分岔與牙周齒槽骨周圍缺損兩大類，並比對手術前與手術後六個月的臨床根尖放射線影像上牙根分岔處，齒頸部到牙根分岔處齒槽

骨線性高度的變化，以牙根分岔到新生成齒槽骨線性高度變化所占牙根分岔點到牙根分岔骨缺損的距離作為線性再生骨高度的比例，另外以牙根分岔到新生成齒槽骨線性高度變化所占患齒近心側與遠心側齒槽骨高度的中心點的比例做為校正骨再生比例。我們以齒槽骨高度的變化、骨再生比例、校正再生比例，三種評估方式作為牙周骨再生效果的評估。實驗第二部分是評估三維快速成型生物支架在實驗豬下顎骨模型貼合度，利用實驗豬模擬下顎大臼齒牙根分叉的臨床破壞，並利用錐狀電腦斷層掃描實驗豬下顎骨模型後搭配三維影像編輯軟體設計骨缺損模型後，我們利用此模型進行模擬臨床客製化牙根分岔骨支架列印，用三維光固化列印技術列印樹脂模型作為對照組，同時羥基

磷灰石彈性骨墨水採用生物列印方式印出三維骨支架。將樹脂骨塊與骨支架分別放回下顎豬骨缺損後，使用微米電腦斷層掃描後，利用影像軟體檢驗此骨生物支架與實驗豬下顎骨缺損到三維骨支架外緣的線性貼合度與比對我們電腦設計的骨塊形狀與三維骨支架相比的體積差異性。結果從臨床根尖片可以看出，我們利用手術前後牙根分岔處齒槽骨再生影像的變化，作為評估牙根分岔牙周再生手術的成功指標。在單純的牙根分岔處缺損，在影像上線性再生骨高度為1.45±1.15毫米，骨再生比例為50±40%與校正骨再生比例為39±30%。三種骨粉的使用當中，使用異種牛骨粉(DBBM, Deproteinized bovine bone minera

l)達64±38%的骨再生效果，相較自體骨骨粉(Autogenous bone)的16±25%與異體骨骨粉(FDBA) 52±34%有較顯著的成果。女性病患相比於男性病患有顯著更好的牙周再生的成果。在合併角狀骨缺損和牙根分岔處缺損，在影像上線性再生骨高度為1.35±1.25毫米，骨再生比例為50±34%與校正骨再生比例為38±32%。使用再生凝膠(EMD)較引導骨再生手術牙周再生膜有更顯著性的牙周再生效果。在實驗豬下顎骨實驗之中，利用電腦斷層分析掃描後的羥基磷灰石生物支架對比電腦設計生物支架線性邊緣貼合度為 82.99±21.12% 和體積密合度85.58±5.48%。結論目前臨床牙根分岔再生

大約有1.4mm 或40%的再生效果。在三維列印骨支架貼合實驗中，骨生物支架相比樹脂生物支架線性邊緣貼合度為82.99% 和體積密合度85.58%。