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1、16牙周炎主要表现为牙槽骨_，牙槽脊顶及骨硬板模糊、消失、牙槽嵴高度降低。A）增生B）肿胀C）吸收D）扩大17牙源性边缘性颌骨骨髓炎的X线检查方法是A）许勒位和经咽侧位B）下颌升支侧位和切线位C）华特位和曲面体层D）下颌前部合片和合翼片18牙源性上颌窦炎的X线检查方法是A）许勒位和经咽侧位B）下颌升支侧位和切线位C）华特位和根尖片D）头颅侧位和合翼片19颌骨放射性骨坏死的临界性剂量指标是A）20GYB）40GyC）60GYD）80GY20破坏期可有大块死骨形成，修复期有大量新骨形成的病变是A）牙源性中央性颌骨骨髓炎B）牙源性边缘性颌骨骨髓炎C）颌骨放射性骨坏死D）牙源性上颌窦炎21下颌骨最容易
2、发生骨折的部位是：。A)髁突颈部、乙状切迹、下颌颏孔区以及下颌正中部；B)髁突颈部、下颌角部、喙突以及下颌正中部；C)髁突颈部、下颌角部、下颌颏孔区以及下颌正中部；D)髁突颈部、下颌角部、下颌颏孔区以及下颌骨；22.髁突按骨折线高低可分为、骨折，此外髁突还可发生矢状骨折。A)髁头骨折、髁突颈部骨折、乙状切迹骨折；B)髁突颈部骨折、下颌角部骨折、喙突骨折；C)髁头骨折、髁突颈部骨折、下颌体部骨折；D)髁头骨折、髁突颈部骨折、髁颈下骨折；23髁突脱位性骨折，因长时间关节凹内空虚可有代偿性类骨质形成或关节凹密质骨硬化增厚，使关节凹。A）变厚；B)变浅；C)变深；D)变大24LeFort型骨折线相当于
3、上颌骨的。A）上薄弱线；B）下薄弱线；C）中薄弱线；D）上和下薄弱线25颧骨、颧弓复合体骨折最佳的检查片位为。A）华氏位和曲面体层；B）曲面体层和颧弓位；C）华氏位和经咽侧位；D）华氏位和颧弓位；26郎格罕斯组织细胞增生症(Langhanscellhistiocytosis)的三种临床综合征为、。A）根尖周肉芽肿、汉-许-克病、累-赛病；B）骨嗜伊红肉芽肿、汉-许-克病、累-赛病；C）骨嗜伊红肉芽肿、汉-许-克病、许勒病。D）根尖周肉芽肿、骨嗜伊红肉芽肿、汉-许-克病27下列疾病名称中，属于面裂囊肿的有：A）含牙囊肿B）根尖周囊肿D）鼻腭管囊肿E）牙源性角化囊肿28下列描述中，哪些不属于牙源性
4、角化囊肿的特点？A）病变范围较大时，常沿颌骨长轴发展B）可单发，也可多发C）病变较大时，多使颌骨向唇颊侧膨隆D）可呈始基囊肿表现29下列描述中，哪些不是成釉细胞瘤的特点？A）颌骨膨胀，以向唇颊侧为主B）牙根可吸收C）常见的影像学表现为多房型D）瘤内常见钙化30下列疾病中，属于牙源性良性肿瘤的有：A）骨肉瘤B）牙骨质-骨化纤维瘤C）颌骨中心性血管瘤D）成釉细胞瘤31下列描述中，哪个不是骨纤维异常增殖症的特点？A）边界不清，多沿颌骨外形膨大B）病变边界清晰，颌骨多局限性膨大C）病变可多发，可有家族史D）病变区表现为高低密度相混杂的影像32下列影像学表现中，哪些不是骨肉瘤的特点？A）骨质结构紊乱，可
5、有成骨和溶骨现象B）瘤骨形成，表现为斑片状或日光放射状C）骨膜反应呈层状或袖口状D）可有死骨形成33牙龈癌的影像学表现为：A）多有病源牙B）典型表现为颌骨扇形骨质破坏C）颌骨呈口小底大的骨质破坏D）可有死骨形成34下列哪一恶性肿瘤属于上皮组织来源的原发性颌骨恶性肿瘤？A）骨肉瘤B）舌癌C）牙龈癌D）原发性骨内癌35阳性结石应当采用方法检查A）涎腺造影B）核素显像C）X线平片D）CT36颌下腺导管阳性结石可用方法检查A）鼓颊后前位B）口内含片C）涎腺造影D）下颌横断咬合片37儿童复发性腮腺炎的特点是A）中老年女性多见B）到青春期可自行痊愈C）口干、眼干D）腮腺进食肿胀38儿童复发性腮腺炎的造影表
6、现是A）末梢导管扩张B）主导管充盈缺损C）主导管呈羽毛状、花边状D）分支导管密集39涎腺肿瘤的首选影像学检查方法是A）MRIB）CTC）B超检查D）造影检查40涎腺肿瘤的B超检查应当观察肿瘤形态、边界回声、内部回声和A）肿瘤大小B）肿瘤部位C）肿瘤和血管的关系D）后方回声41在CT图像上具有特征性密度值的是A）沃辛瘤B）多形性腺瘤C）脂肪瘤D）恶性肿瘤42舍格伦综合征典型的造影表现是A）信号强度不均匀B）骨破坏C）边界回声不清楚D）末梢导管扩张43欲观察颞下颌关节间隙变化，应选择何种片位？A)髁突经咽侧位片B)曲面体层片C)许勒位片D)头颅侧位44许勒位片主要用于观察颞下颌关节的哪一部分结构？
7、A）外13结构B）中13结构C）内13结构D）外12结构45欲观察关节盘的病变应用何种检查方法A)许勒位片B)关节造影C）磁共振D）B和C46在骨关节病变常见的X线改变中，如下哪一种X线表现是不可能存在的的？A）髁突骨赘B）髁突硬化C）髁突囊样变D）关节正常结构消失，形成骨球47颞下颌关节紊乱病常规X线检查方法中，下述哪一种是不需要的？A）许勒位B）曲面体层C）华氏位D）髁突经咽侧位片48颞下颌关节骨性强直的主要X线表现是什么？A）髁突骨赘形成B）髁突硬化C）关节区骨球形成D）髁突囊样变49关节创伤后关节腔内有较多积液或积血时，在许勒位片常显示出关节间隙的哪种变化？A）关节间隙变窄B）关节间隙
8、大致正常C）关节间隙增宽D）关节间隙消失疼痛，生长较快，浸润性生长，与周围组织有粘连，浸润神经组织并导致神经功能障碍。女多于男，发生于腮腺者居多其次是腭部和下颌下腺，也可发生于其他小唾液腺，特别是磨牙后腺高分化黏液表皮样癌的临床表现有时与多形性腺瘤相似，呈无痛性肿块、生长缓慢。肿瘤体积大小不等，边界可清或不清，质地中等偏硬，表面可呈结节状。位于腭部及磨牙后区的有时可呈囊性，表面黏膜呈浅蓝色，应与囊肿相鉴别。在手术中可以发现，肿瘤常无包膜或包膜不完整，与周围腺体组织无明显界限。有时可见面神经与肿瘤粘连，甚至被肿瘤包裹，但很少出现面瘫症状。高分化黏液表皮样癌如手术切除不彻底，术后可以复发，但很少发
9、生颈淋巴结转移，血行转移更少为见。患者术后生存率较高，预后较好。相反，低分化黏液表皮样癌生长较快，可有疼痛，边界不清，与周围组织粘连，腮腺肿瘤常累及面神经，淋巴结转移率较高，且可出现血行转移。术后易于复发，患者预后较差。 Pain , Grow fast , Infiltrative growth, Have someadhesionwithadjacenttissue, Infiltrating nerve tissue and cause nerve dysfunction. Female has the more likehood than male, Tended to occur i
10、n parotid gland with jaws and the submandibular gland, can also occur in other small salivary glands, especially the gland after grinding.Well-differentiated mucoepidermoid carcinoma of the clinical manifestations and pleomorphic adenoma are similar, sometimes a painless mass Slow growth Tumor volum
11、e size, boundary can be clear or unclear, medium to hard texture, surface nodules can be seen Sometimes in the jaws and teeth after can show cystic, surface of mucosa is shallow blue, should identify with different cyst Can be found in the surgery, the tumor often coated or incomplete capsule, with
12、the surrounding gland tissue has no obvious boundaries Sometimes visible facial nerve and tumor adhesion, even by tumor packages, but few symptoms of facial paralysis well-differentiated mucoepidermoid carcinoma, such as surgical resection is not complete, can relapse after, but rarely transfer anal
13、ysis, less blood bank transfer for the patients with postoperative survival rate is higher, the prognosis is good.Instead, poorly differentiated mucoepidermoid carcinoma grow faster, but there is pain, the boundary is not clear, and the surrounding tissue adhesion, parotid gland tumor involving the
14、facial nerve, lymph node metastasis rate is higher, and there will be blood line Easy to relapse, postoperative patients with poor prognosis.Just like most cancers manifestation, the patient has the symptom of pain, swelling and dysfunction. The tumor grows up quickly, and always invasion the tissue
15、 nearby. If the tumor infringe nerve, than patient will feel numb or pain in the dominated area. According to the difference of cell differentiation, mucoepidermoid carcinoma was divided into two kinds, which are well-differentiated mucoepidermoid carcinoma and poor differentiated mucoepidermoid car
16、cinoma. The well-differentiated kind belongs to low grade malignancy, and the poor differentiated kind belongs to high grade malignancy.The well-differentiated kind usually grows slower and less painful. The tumor can be large or small. The boundary of the tumor can be distinct but sometimes fuzzine
17、ss. The surface of the tumor always presents nodositas. If the tumor grows at retromolar, it always present sac and mucous membrane on the surface present wathet. But facial paralysis is rare on this kind.The poor differentiated kind, by contrast, grows quickly, pain, has a fuzziness boundary and co
18、nglutinate with the tissue nearby. Facial nerve infringing is common on this kind.The rank of the predilection site is: parotid gland, palatine, submandibular gland and minor salivary glands. By the way, it stand a good chance to be mucoepidermoid carcinoma if it happened on retromolar.When happened
19、 at parotid gland, it always presents bossing or anabrosis under earlobe, sometimes happened at pharyngeal. The patients usually go to a doctor for the reason of facial paralysis. And the patient will feel difficult to open their mouth when the tumor infringe the masseter.If happened at sublingual g
20、land, the symptom is not very obvious. When happened at submandibular gland, it always infringes lingual nerve and hypoglossal nerve. If infringe lingual nerve, patient will feel pain and numb of tongue. If infringe the hypoglossal nerve, tongue will present tremble and atrophy, when the patient sti
21、ck tongue out, the tongue will deviate to the lesion side.When happened at palatine, the patient always feel numb or burning on palatine and infraorbital region. If the tumor fill the oral, it will cause difficulty on swallow. It also cause restriction on mouth opening when infringe alary muscle.Except palatine, mucoepidermoid carcinoma also happened commonly on retromolar. If so, as the tumor has sticky secretions , doctor should be great careful not to mix it up with mucocele.