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The maxillary first molar is the human too … The maxillary first molar is the human tooth located laterally (away from the midline of the face) from both the maxillary second premolars of the mouth but mesial (toward the midline of the face) from both maxillary second molars. The function of this molar is similar to that of all molars in regard to grinding being the principal action during mastication, commonly known as chewing. There are usually four cusps on maxillary molars, two on the buccal (side nearest the cheek) and two palatal (side nearest the palate). There may also be a fifth smaller cusp on the palatal side known as the Cusp of Carabelli. Normally, maxillary molars have four lobes, two buccal and two lingual, which are named in the same manner as the cusps that represent them (mesiobuccal, distobuccal, mesiolingual, and distolingual lobes). Unlike the anterior teeth and premolars, molars do not exhibit facial developmental depressions. Evidence of lobe separation can be found in the central groove, which divides buccal from lingual lobes. The two lingual lobes are separated by the distolingual groove, and the two buccal lobes are divided by the buccal groove. There are great differences between the deciduous (baby) maxillary molars and those of the permanent maxillary molars, even though their function are similar. The permanent maxillary molars are not considered to have any teeth that precede it. Despite being named molars, the deciduous molars are followed by permanent premolars.olars are followed by permanent premolars.
, De eerste molaar is een molaar in de achte … De eerste molaar is een molaar in de achterste delen van de mond, achter de premolaren (zie afbeelding). In een normale gebitssituatie is het de 6e tand vanaf het midden van de mond (centrale snijtanden). In een normaal volwassen gebit bevinden zich in totaal 4 eerste molaren, één in elk kwadrant. De eerste molaar breekt in de regel door op 6-jarige leeftijd. Achter de eerste molaren bevinden zich de tweede molaren. Beide hebben grofweg dezelfde kenmerken en functie.ben grofweg dezelfde kenmerken en functie.
, Il primo molare è anche detto sesto dente … Il primo molare è anche detto sesto dente o dente dei sei anni: infatti segue i due incisivi, il canino ed i due premolari come posizione, ed erompe al sesto anno di età prima che inizi la permuta dentaria. Ha una notevole stabilità anatomica. È il solo dente che presenta costantemente le facce prossimali divergenti per dare origine ad una faccia palatale maggiore della vestibolare: il diametro mesio-distale coronale è di 10 mm vestibolarmente, 11 palatalmente; al colletto si riduce a 8 mm. Presenta costantemente un ponte di smalto che costituisce una cresta obliqua, che congiunge la cuspide mesio-palatale con la disto-vestibolare. Sulla faccia linguale della cuspide mesio-palatale può comparire un rilievo più o meno sviluppato, detto tubercolo di Carabelli. Ha un'altezza di 20.5 mm, di cui 7.5 coronali e 13 radicolari. Il diametro vestibolo-linguale coronale è di 11 mm, e si riduce al colletto di 1 mm.di 11 mm, e si riduce al colletto di 1 mm.
, Ο πρώτος γομφίος άνω γνάθου ανήκει στην ομ … Ο πρώτος γομφίος άνω γνάθου ανήκει στην ομάδα των γομφίων. Είναι το έκτο δόντι του εκατέρωθεν της , τοποθετημένο ανάμεσα στον προς την εγγύς όμορη επιφάνειά του και στον προς την άπω όμορη επιφάνειά του. Ο πρώτος γομφίος της στην εγγύς όμορη επιφάνειά του συνορεύει με τον κυνόδοντα καθώς απουσιάζουν οι προγόμφιοι από τον . Ο μόνιμος ανατέλλει κατά το έκτο έτος γι' αυτό είναι γνωστός και σαν «εξαρίτης».γι' αυτό είναι γνωστός και σαν «εξαρίτης».
, 上顎第一大臼歯（じょうがくだいいちだいきゅうし、英語: maxillary firs … 上顎第一大臼歯（じょうがくだいいちだいきゅうし、英語: maxillary first molar）とは、上顎歯列で第二小臼歯の遠心側に隣接する歯のこと。正中から六番目にあることから上顎6番とも言う。近心側隣接歯は上顎第二小臼歯、遠心側隣接歯は上顎第二大臼歯、対合歯は下顎第一大臼歯と下顎第二大臼歯である。歯冠が完成するのは二歳半～三歳時、萌出は六～七歳、歯根完成は九～十歳の時である。下顎第一大臼歯と並び、永久歯で最も早く萌出する歯であったが、近年の統計では下顎中切歯より萌出が遅れる。噛む力は非常に強く、最大で60kgに達する。また最も虫歯になりやすい歯である。6歳頃に生えてくることから6歳臼歯とも呼ばれる。。また最も虫歯になりやすい歯である。6歳頃に生えてくることから6歳臼歯とも呼ばれる。
, O Primeiro molar superior é um dente inser … O Primeiro molar superior é um dente inserido osso maxilar. A qual nele possui o tuberculo de carabelli. Raiz- o primeiro molar superior tem um bulbo radicular, que se divide em três raízes, nas posições mésio- vestibular, disto vestibular e lingual. A raiz lingual é a maior e mais longa de todas, tem forma cônica e diverge muito das outras ( e do próprio eixo do dente) devido a sua inclinação lingual. Ela é sulcada longitudinalmente nos doiss terços cervicais de sua superfície lingual. Não se desvia para a distal. As raízes vestibulares são achatadas mésio-distalmente e a é bem mais larga do que a disto-vestibular. Elas divergem muito pouco do eixo do dente e são mais ou menos paralelas entre si. O terço apical dessas raízes muitas vezes se curvam um em direção ao outro (aspecto de chifres de touro), outra vezes ambos se desviam um pouco pra distal. As três raízes não se fusionam. Estão sempre bem separadas uma das outras.Estão sempre bem separadas uma das outras.
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, Maxillary first molars of permanent and primary teeth marked in red.
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O Primeiro molar superior é um dente inser … O Primeiro molar superior é um dente inserido osso maxilar. A qual nele possui o tuberculo de carabelli. Raiz- o primeiro molar superior tem um bulbo radicular, que se divide em três raízes, nas posições mésio- vestibular, disto vestibular e lingual. A raiz lingual é a maior e mais longa de todas, tem forma cônica e diverge muito das outras ( e do próprio eixo do dente) devido a sua inclinação lingual. Ela é sulcada longitudinalmente nos doiss terços cervicais de sua superfície lingual. Não se desvia para a distal. As raízes vestibulares são achatadas mésio-distalmente e a é bem mais larga do que a disto-vestibular. Elas divergem muito pouco do eixo do dente e são mais ou menos paralelas entre si. O terço apical dessas raízes muitas vezes se curvam um em direção ao outro (aspecto de chifrm um em direção ao outro (aspecto de chifr
, Il primo molare è anche detto sesto dente … Il primo molare è anche detto sesto dente o dente dei sei anni: infatti segue i due incisivi, il canino ed i due premolari come posizione, ed erompe al sesto anno di età prima che inizi la permuta dentaria. Ha una notevole stabilità anatomica. È il solo dente che presenta costantemente le facce prossimali divergenti per dare origine ad una faccia palatale maggiore della vestibolare: il diametro mesio-distale coronale è di 10 mm vestibolarmente, 11 palatalmente; al colletto si riduce a 8 mm.alatalmente; al colletto si riduce a 8 mm.
, Ο πρώτος γομφίος άνω γνάθου ανήκει στην ομ … Ο πρώτος γομφίος άνω γνάθου ανήκει στην ομάδα των γομφίων. Είναι το έκτο δόντι του εκατέρωθεν της , τοποθετημένο ανάμεσα στον προς την εγγύς όμορη επιφάνειά του και στον προς την άπω όμορη επιφάνειά του. Ο πρώτος γομφίος της στην εγγύς όμορη επιφάνειά του συνορεύει με τον κυνόδοντα καθώς απουσιάζουν οι προγόμφιοι από τον . Ο μόνιμος ανατέλλει κατά το έκτο έτος γι' αυτό είναι γνωστός και σαν «εξαρίτης».γι' αυτό είναι γνωστός και σαν «εξαρίτης».
, De eerste molaar is een molaar in de achte … De eerste molaar is een molaar in de achterste delen van de mond, achter de premolaren (zie afbeelding). In een normale gebitssituatie is het de 6e tand vanaf het midden van de mond (centrale snijtanden). In een normaal volwassen gebit bevinden zich in totaal 4 eerste molaren, één in elk kwadrant. De eerste molaar breekt in de regel door op 6-jarige leeftijd. Achter de eerste molaren bevinden zich de tweede molaren. Beide hebben grofweg dezelfde kenmerken en functie.ben grofweg dezelfde kenmerken en functie.
, The maxillary first molar is the human too … The maxillary first molar is the human tooth located laterally (away from the midline of the face) from both the maxillary second premolars of the mouth but mesial (toward the midline of the face) from both maxillary second molars. The function of this molar is similar to that of all molars in regard to grinding being the principal action during mastication, commonly known as chewing.ng mastication, commonly known as chewing.
, 上顎第一大臼歯（じょうがくだいいちだいきゅうし、英語: maxillary firs … 上顎第一大臼歯（じょうがくだいいちだいきゅうし、英語: maxillary first molar）とは、上顎歯列で第二小臼歯の遠心側に隣接する歯のこと。正中から六番目にあることから上顎6番とも言う。近心側隣接歯は上顎第二小臼歯、遠心側隣接歯は上顎第二大臼歯、対合歯は下顎第一大臼歯と下顎第二大臼歯である。歯冠が完成するのは二歳半～三歳時、萌出は六～七歳、歯根完成は九～十歳の時である。下顎第一大臼歯と並び、永久歯で最も早く萌出する歯であったが、近年の統計では下顎中切歯より萌出が遅れる。噛む力は非常に強く、最大で60kgに達する。また最も虫歯になりやすい歯である。6歳頃に生えてくることから6歳臼歯とも呼ばれる。。また最も虫歯になりやすい歯である。6歳頃に生えてくることから6歳臼歯とも呼ばれる。
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Primo molare superiore
, Πρώτος γομφίος άνω γνάθου
, Primeiro molar superior
, Maxillary first molar
, Eerste molaar
, 上顎第一大臼歯
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