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Posterior superior alveolar nerve

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The nerve innervates the second and third maxillary/upper molar teeth, and two of the three roots of the maxillary/upper first molar tooth (all but the mesiobuccal root).
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When giving a posterior superior alveolar nerve block, it will anesthetize the mesialbuccal root of the maxillary/upper first molar tooth approximately 72% of the time.
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as a single trunk. They run on or in the maxilla. They provide sensory innervation to the upper molar teeth and adjacent
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The nerve arises as a single trunk which split into 2-3 nerves within the pterygopalatine fossa.
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The nerves provide sensory innervation to the upper/maxillary molar teeth and the associated
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Knowledge articles incorporating text from the 20th edition of Gray's Anatomy (1918)
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at The Anatomy Lesson by Wesley Norman (Georgetown University) (
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at The Anatomy Lesson by Wesley Norman (Georgetown University) (
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rami alveolares superiores posteriores nervi maxillaris
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The nerves exit the pterygopalatine fossa through the
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Outer surface. 387:Middle superior dental nerve 740:posterior superior alveolar 485:of the 20th edition of 301:at the roots of the teeth. 297:; these branches enter the 1019: 925: 750:anterior superior alveolar 313:of the vestibule, and the 220:just before it enters the 202:The nerves arise from the 802:to muscles of mastication 135: 47: 23: 745:middle superior alveolar 239:pterygomaxillary fissure 177:. They arise within the 812:to tensor veli palatini 397:Inferior alveolar nerve 359:Superior alveolar nerve 867:submandibular ganglion 295:superior dental plexus 710:pterygopalatine fossa 401:Inferior dental nerve 363:Superior dental nerve 331:Clinical significance 275:infratemporal surface 216:pterygopalatine fossa 208:maxillary nerve (CN V 179:pterygopalatine fossa 171:maxillary nerve (CN V 40:submaxillary ganglion 777:middle cranial fossa 691:middle cranial fossa 269:They then enter the 246:They descend on the 30:Distribution of the 627:posterior ethmoidal 222:infraorbital groove 1003:Neuroanatomy stubs 843:posterior division 723:zygomaticotemporal 632:anterior ethmoidal 955: 954: 898: 897: 894: 893: 874:inferior alveolar 817:lateral pterygoid 794:anterior division 760: 759: 674: 673: 460:978-0-7295-3752-0 453:(12th ed.). 410:Additional images 151: 150: 146: 36:mandibular nerves 1010: 976: 969: 962: 934: 927: 915: 914: 906: 850:auriculotemporal 808:medial pterygoid 772: 728:zygomaticofacial 699:middle meningeal 686: 649:ciliary ganglion 582: 568:trigeminal nerve 560: 553: 546: 537: 475: 474: 465: 464: 446: 420: 169:branches of the 143:edit on Wikidata 52: 28: 16: 1018: 1017: 1013: 1012: 1011: 1009: 1008: 1007: 998:Maxillary nerve 983: 982: 981: 980: 923: 921: 909: 901: 899: 890: 838: 789: 756: 703: 670: 655: 603: 570: 564: 526:MedEd at Loyola 498: 472: 469: 468: 461: 448: 447: 436: 431: 424: 421: 412: 341: 333: 325: 315:maxillary sinus 307: 299:apical foramina 287:maxillary sinus 271:alveolar canals 260:mucous membrane 235: 211: 200: 195: 187:maxillary sinus 174: 147: 77:dental alveolus 69:Maxillary sinus 55: 43: 12: 11: 5: 1016: 1014: 1006: 1005: 1000: 995: 985: 984: 979: 978: 971: 964: 956: 953: 952: 935: 920: 919: 896: 895: 892: 891: 889: 888: 887: 886: 881: 871: 870: 869: 859: 858: 857: 846: 844: 840: 839: 837: 836: 831: 830: 829: 824: 819: 814: 797: 795: 791: 790: 788: 787: 781: 779: 769: 762: 761: 758: 757: 755: 754: 753: 752: 747: 742: 732: 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856: 855:otic ganglion 853: 852: 851: 848: 847: 845: 841: 835: 832: 828: 827:deep temporal 825: 823: 820: 818: 815: 813: 809: 806: 805: 804: 803: 799: 798: 796: 792: 786: 783: 782: 780: 778: 773: 770: 767: 763: 751: 748: 746: 743: 741: 738: 737: 736: 733: 729: 726: 724: 721: 720: 719: 716: 715: 713: 711: 706: 700: 697: 696: 694: 692: 687: 684: 681: 677: 667: 666: 664: 662: 658: 650: 647: 646: 645: 642: 638: 635: 634: 633: 630: 628: 625: 623: 620: 618: 615: 614: 612: 610: 606: 600: 597: 595: 592: 591: 589: 587: 583: 580: 577: 573: 569: 561: 556: 554: 549: 547: 542: 541: 538: 532: 531: 527: 524: 521: 520: 519:latnasalwall4 515: 512: 509: 508: 503: 502:cranialnerves 500: 499: 495: 493: 492: 489: 486: 484: 480: 479:public domain 462: 456: 452: 445: 443: 441: 439: 435: 428: 419: 414: 409: 402: 398: 395: 394: 388: 384: 381: 378: 374: 371: 370: 369: 368: 364: 360: 357: 356: 355: 354: 350: 346: 343: 342: 338: 336: 330: 328: 322: 320: 319: 316: 312: 304: 302: 300: 296: 292: 288: 284: 280: 276: 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Index


maxillary
mandibular nerves
submaxillary ganglion

Maxillary sinus
molars
dental alveolus
Latin
TA98
A14.2.01.050
TA2
6235
FMA
75545
Anatomical terms of neuroanatomy
edit on Wikidata
sensory
maxillary nerve (CN V2)
pterygopalatine fossa
gum
maxillary sinus
trunk
maxillary nerve (CN V2)
pterygopalatine fossa
infraorbital groove
pterygomaxillary fissure
tuberosity
maxilla
gums

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