{"id":3309,"date":"2019-04-29T01:31:31","date_gmt":"2019-04-28T17:31:31","guid":{"rendered":"https:\/\/www.cerecdigest.net\/?p=3309"},"modified":"2019-05-02T14:52:23","modified_gmt":"2019-05-02T06:52:23","slug":"bopt-tooth-faerie-club","status":"publish","type":"post","link":"https:\/\/www.cerecdigest.net\/2019\/04\/29\/bopt-tooth-faerie-club\/","title":{"rendered":"BOPT \u2013 Tooth Faerie Club"},"content":{"rendered":"\n

\u672c\u7c21\u4ecb\u4f86\u81ea\u65bcTF\u6578\u4f4d\u7259\u79d1\u8b80\u66f8\u6703\uff0c\u611f\u8b1d\u53c3\u8207\u91ab\u5e2b\u7684\u6587\u737b\u6574\u7406\u8207\u8a0e\u8ad6<\/p>\n\n\n\n

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\u85c9\u7531\u5c0f\u7d44\u8a0e\u8ad6\u523a\u6fc0\u601d\u8003\uff0c\u6210\u54e1\u5011\u5206\u4eab\u7d93\u9a57\u548c\u77e5\u8b58\uff0c\u642d\u914d\u56de\u9867\u7684\u6587\u737b\uff0c\u96c6\u601d\u5ee3\u76ca\uff0c\u89e3\u6c7a\u81e8\u5e8a\u554f\u984c\u3002<\/figcaption><\/figure>\n\n\n\n

\u524d\u8a00<\/strong><\/h1>\n\n\n\n

\u9019\u6b21\u8b80\u66f8\u6703\u7684\u4e3b\u984c\u662f BOPT (Biological oriented preparation technique )\uff0c\u53c8\u8996\u70ba\u300cVertical preparation\u300d\u7684\u5176\u4e2d\u4e00\u7a2e\u985e\u578b\u3002<\/p>\n\n\n\n

\u4e8b\u5be6\u4e0a vertical prep \u5728\u7259\u79d1\u4e2d\u5b58\u5728\u975e\u5e38\u9577\u7684\u6b77\u53f2\uff0c\u5728\u904e\u5f80 amputation \u9084\u76db\u884c\u7684\u5e74\u4ee3\u5c31\u662f\u5229\u7528 vertical prep \u4f86\u8655\u7406\u5207\u5b8c\u7684\u7259\u9f52\u3002\u96a8\u8457\u6c27\u5316\u92ef\u7684\u767c\u5c55\u8207\u76db\u884c\uff0cVertical preparation \u5728\u81e8\u5e8a\u61c9\u7528\u4e0a\u6709\u4e86\u5f88\u591a\u7684\u8b8a\u5316\u8207\u66f4\u65b0\u3002<\/p>\n\n\n\n

\u6211\u5011\u597d\u5947 Vertical preparation \u4ee5\u73fe\u4eca\u7684\u89c0\u9ede\u4f86\u770b\uff0c\u5c24\u5176\u91dd\u5c0d\u4f7f\u7528\u9676\u74f7\u6750\u6599\u6240\u5e36\u4f86\u7684\u8b8a\u9769\uff0c\u8a72\u5982\u4f55\u5728\u81e8\u5e8a\u4e0a\u767c\u63ee\u61c9\u7528\u3002<\/p>\n\n\n\n

BOPT\nVS VERTICAL PREP<\/strong><\/h1>\n\n\n\n

\u9996\u5148\uff0c\u5fc5\u9808\u5148\u5b9a\u7fa9\u5340\u5225 BOPT \u8207 Vertical preparation\u3002<\/p>\n\n\n\n

\u6240\u8b02 Vertical preparation \u662f\u76f8\u5c0d\u8207\u300cHorizontal preparation\u300d\u3002\u5e38\u898b\u7684 Horizontal preparation \u4e0d\u8ad6\u662f chamfer\u3001shoulder \u7b49\u90fd\u662f\u4ee5\u6c34\u5e73\u65b9\u5411\u4fee\u78e8\u8a2d\u8a08\u51fa\u4e00\u500b\u7cbe\u78ba\u7684 margin \u4f4d\u7f6e\uff0c\u800c Vertical preparation \u5247\u662f\u4ee5\u5782\u76f4\u65b9\u5411\uff0c\u5411\u4e0b\u4fee\u78e8\u7684\u4e00\u7a2e margin design\uff0c\u6b64\u985e\u7684 margin \u578b\u614b\u53c8\u5e38\u7a31\u70ba knife edge\u3001feather edge\u3002<\/p>\n\n\n\n

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\u5de6\u5716\u70ba vertical preparation\uff0c\u5efa\u7acb\u5728\u4e00\u500b\u659c\u9762\u4e0a\u3002\u53f3\u5716\u70ba\u50b3\u7d71 horizontal preparation
\uff0c \u6709\u4e00\u500b\u660e\u78ba\u7684 vertical stop\u3002<\/figcaption><\/figure>\n\n\n\n

\u800c BOPT \u5247\u662f\u5c08\u6307\u5728\u7259\u9f66\u4e0b\u7684 Vertical preparation margin\u3002\u800c\u672c\u7bc7\u6211\u5011\u60f3\u8457\u91cd\u7684\u90e8\u5206\uff0c\u5c31\u662f BOPT \u7684\u61c9\u7528\u3002<\/p>\n\n\n\n

BOPT\n<\/strong>\u6b65\u9a5f<\/strong><\/h1>\n\n\n\n

\u8981\u4e86\u89e3 BOPT\uff0c\u6211\u5011\u5148\u4f86\u770b\u770b\u4ed6\u7684\u81e8\u5e8a\u6b65\u9a5f\u3002\u4ee5\u4e0b\u5f15\u7528\u81ea Loi\u5b78\u8005\u57282013\u5e74\u767c\u8868\u7684\u6587\u737b1<\/sup>\uff0c\u505a\u500b\u91cd\u9ede\u5f0f\u7684\u6458\u8981\u3002\u5efa\u8b70\u5927\u5bb6\u53ef\u4ee5\u53c3\u8003\u539f\u6587\uff0c\u77ad\u89e3\u66f4\u8a73\u76e1\u7684\u6b65\u9a5f\u8207\u7d30\u7bc0\u3002<\/p>\n\n\n\n

\u9996\u5148\uff0c\u5fc5\u9808 probing \u4ee5\u6c7a\u5b9a margin subgingival \u7684\u6df1\u5ea6\uff0c\u6b64\u6b65\u9a5f\u975e\u5e38\u91cd\u8981\uff0c\u76ee\u7684\u662f\u70ba\u4e86\u907f\u514d\u4fb5\u72af biological width\u3002<\/p>\n\n\n\n

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Probing \u78ba\u8a8d pocket depth\u3002<\/figcaption><\/figure>\n\n\n\n

\u63a5\u8457\u4f7f\u7528 tip \u524d\u7aef\u5c16\u92b3\u7684bur\u5f80\u7259\u9f66\u4e0b\u4fee\u78e8\uff0cbur \u8981\u7a0d\u5fae\u50be\u659c\u4e00\u500b\u89d2\u5ea6\u907f\u514d\u88fd\u9020 horizontal \u7684 margin step\u3002\u5728\u6b64\u6b65\u9a5f\u6642\uff0c\u6703\u79fb\u9664\u7259\u9f52\u539f\u6709\u7684 CEJ\uff0cbur \u4e5f\u6703\u540c\u6642\u4fee\u78e8\u5230 intra-sulcus \u7684\u7259\u9f66\u5167\u7de3\uff0c\u4f5c\u8005\u5c07\u9019\u500b\u65b9\u5f0f\u7a31\u4f5c gingitage technique\uff0c\u6b62\u8840\u5f8c\u88fd\u4f5c\u81e8\u6642\u5047\u7259\uff0c\u4e26\u8b93\u75c5\u4eba\u56de\u53bb\u8ffd\u8e644~6\u5468\u3002<\/p>\n\n\n\n

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Bur \u7a0d\u5fae\u50be\u659c\u4e00\u500b\u89d2\u5ea6\u907f\u514d\u88fd\u9020\u51fa horizontal \u7684 margin \u4e26\u79fb\u9664\u820a\u6709\u7684 CEJ\uff0c\u4e0d\u53ef\u907f\u514d\u7684\u6703\u50b7\u5230\u7259\u8089\uff0c\u4f5c\u8005\u7a31\u4f5c gingitage technique\u3002<\/figcaption><\/figure>\n\n\n\n

\u78ba\u8a8d\u7259\u8089\u7652\u5408\u5065\u5eb7\u5f8c\u4ee5 double cords \u7684\u65b9\u5f0f\u53d6\u6a21\uff0c\u6280\u5e2b\u6703\u5728\u6a21\u578b die \u4e0a\u6a19\u51fa\u5169\u500b\u4f4d\u7f6e\uff1a(1) gingiva\u9ad8\u5ea6\uff0c(2) sulcus \u6700\u6df1\u8655\uff0c\u4e26\u5c07\u5047\u7259\u7684 margin \u653e\u5728\u9019\u5169\u500b\u4f4d\u7f6e\u4e4b\u9593\uff0c\u7a31\u4e4b\u70ba finishing area\uff0c\u6700\u7d42\u7684margin\u4f4d\u7f6e\u662f\u5370\u5b8c\u6a21\u5f8c\u7531\u91ab\u5e2b\u6216\u6280\u5e2b\u5728\u9019\u500b\u5340\u57df\u4e2d\u6c7a\u5b9a\u7684 \u3002\u53e6\u5916\uff0c\u56e0\u70ba\u539f\u6709 CEJ \u5df2\u88ab\u79fb\u9664\uff0c\u56e0\u6b64\u53ef\u4ee5\u91cd\u65b0\u8a2d\u8a08\u7406\u60f3 CEJ \u4f4d\u7f6e\uff0c\u88fd\u9020\u51fa\u65b0\u7684\u4eba\u5de5 CEJ\uff0c\u65b9\u4fbf\u5851\u9020\u7406\u60f3\u7684\u7259\u8089\u5f62\u614b\u3002<\/p>\n\n\n\n

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\u85cd\u7dda\u70ba\u53d6\u5230\u7684\u6700\u6df1\u8655\uff0c\u9ed1\u7dda\u70ba gingival margin\uff0c\u4e4b\u9593\u7684\u5340\u57df\u70ba finish area\uff0c\u6700\u7d42\u7684 margin \u5c31\u5efa\u7acb\u5728\u9019\u500b\u5340\u57df\u4e4b\u4e2d\u3002
<\/figcaption><\/figure>\n\n\n\n

\u4f5c\u8005\u8a8d\u70ba BOPT \u5177\u6709\u4fdd\u7559\u9f52\u8cea\u3001\u80fd\u91cd\u65b0\u88fd\u9020\u51fa\u65b0\u7684\u4eba\u5de5 CEJ \u4e26\u5851\u5f62\u7259\u8089\u3001\u5099\u7259\u5370\u6a21\u8f03\u7c21\u55ae\u7b49\u512a\u9ede\u3002<\/p>\n\n\n\n

\u8a0e\u8ad6<\/strong><\/h1>\n\n\n\n

\u5728\u5c0d BOPT \u6709\u4e86\u9019\u4e9b\u57fa\u790e\u7684\u8a8d\u8b58\u4e4b\u5f8c\uff0c\u6210\u54e1\u5011\u5148\u5c0f\u7d44\u8a0e\u8ad6 BOPT \u6709\u90a3\u4e9b\u597d\u8655\uff1f\u6709\u6c92\u6709\u4ec0\u9ebc\u7591\u616e\u5462\uff1f\u8a0e\u8ad6\u6574\u7406\u51fa\u4e86\u4ee5\u4e0b\u5927\u5bb6\u6bd4\u8f03\u5728\u610f\u7684\u554f\u984c\uff0c\u518d\u642d\u914d\u56de\u9867\u7684\u6587\u737b \uff0c\u9032\u4e00\u6b65\u7684\u601d\u8003\u8207\u8a0e\u8ad6 \u3002 <\/p>\n\n\n\n

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\u6210\u54e1\u521d\u6b65\u8a0e\u8ad6\u7684\u7684\u554f\u984c\u6574\u7406\uff0c\u63a5\u4e0b\u4f86\u518d\u914d\u6587\u737b\uff0c\u9032\u4e00\u6b65\u7684\u601d\u8003\u8207\u8a0e\u8ad6<\/figcaption><\/figure>\n\n\n\n

\u5f37\u5ea6<\/strong><\/p>\n\n\n\n

Vertical prep \u7684\u8a2d\u8a08\u6703\u4f7f\u5047\u7259\u6750\u6599\u5728 margin \u908a\u7de3\u662f\u975e\u5e38\u8584\u7684\u3002\u800c\u4f7f\u7528\u9676\u74f7\u6642\uff0c\u6211\u5011\u90fd\u64d4\u5fc3\u908a\u7de3\u539a\u5ea6\u4e0d\u8db3\u53ef\u80fd\u9020\u6210\u6750\u6599\u5f37\u5ea6\u4e0d\u5920\uff0c\u5bb9\u6613\u7834\u88c2\u3002<\/p>\n\n\n\n

\u7136\u800c\u6839\u64da\u6587\u737b234<\/sup>\u986f\u793a\uff0c\u4e0d\u8ad6\u662f coping \u6216\u662f monolithic restoration, vertical preparation \u8207\u5176\u4ed6 horizontal preparation \u7684\u7d44\u5225\u6bd4\u8d77\u4f86\uff0c\u5728\u5f37\u5ea6\u7684\u8868\u73fe\u5176\u5be6\u76f8\u7576\u597d\u3002<\/p>\n\n\n\n

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\u6700\u5de6\u7684 shoulderless \u5f37\u5ea6\u8868\u73fe\u4f9d\u7136\u76f8\u7576\u4e0d\u932f
source : Beuer F, effect of preparation design on the fracture resistance of zirconia crown copings, Dent Mater J. 2008 May <\/figcaption><\/figure>\n\n\n\n

\u6587\u737b\u4e2d\u63a2\u8a0e\u53ef\u80fd\u7684\u539f\u56e0\u662f\uff0chorizontal preparation \u5728\u53d7\u529b\u6642 margin \u8655\u6703\u6709\u61c9\u529b\u96c6\u4e2d\uff0c\u800c vertical preparation \u5728 margin \u8655\u5247\u56e0\u70ba\u6c92\u6709\u4e00\u500b stop\uff0c\u6703\u5fae\u5fae\u5411\u4e0b\u6c89\u964d\uff0c\u56e0\u6b64\u5373\u4f7f\u6750\u6599\u539a\u5ea6\u8f03\u8584\u4e5f\u4e0d\u5f71\u97ff\u5f37\u5ea6\u3002<\/p>\n\n\n\n

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\u76ee\u524d\u6587\u737b\u8a8d\u70ba vertical prep \u53d7\u529b\u6642\u5047\u7259\u80fd\u5fae\u5fae\u7684\u4e0b\u6c89\uff0c\u50b3\u7d71\u908a\u7de3\u5247\u6703\u963b\u6b62\u9019\u500b\u4e9b\u5fae\u7684\u4e0b\u6c89\uff0c\u9020\u6210\u61c9\u7acb\u96c6\u4e2d\u5728\u8f03\u8106\u5f31\u7684\u908a\u7de3<\/figcaption><\/figure>\n\n\n\n

\u908a\u7de3\u5bc6\u5408\u5ea6 marginal fit<\/strong><\/p>\n\n\n\n

\u56e0\u70ba vertical preparation \u5c0d\u65bc margin \u4f4d\u7f6e\u5224\u5b9a\u8207\u4e00\u822c\u5e38\u7528\u7684 horizontal preparation \u6709\u5f88\u5927\u7684\u4e0d\u540c\uff0c\u90a3\u9ebc vertical preparation \u5728\u908a\u7de3\u5bc6\u5408\u5ea6\u7684\u8868\u73fe\u5982\u4f55\u5462\uff1f<\/p>\n\n\n\n

\u5f9e\u6587\u737b56<\/sup>\u4e2d\u986f\u793a\uff0cmarginal gap \u5728 vertical preparation \u8207 horizontal preparation \u4e4b\u9593\u6c92\u6709\u986f\u8457\u7684\u5dee\u7570\uff0c\u5169\u8005\u7684gap\u539a\u5ea6\u90fd\u5728\u81e8\u5e8a\u53ef\u63a5\u53d7\u7bc4\u570d\u5167\uff0c\u751a\u81f3 vertical preparation \u7684 gap \u9084\u8981\u66f4\u5c0f\u3002<\/p>\n\n\n\n

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\u6700\u5de6\u7684 feather-edge \u6709\u6700\u5c0f\u7684 marginal opening
source : Comlekoglu M, influence of cervical finish line type on the marginal adaptation of zirconia ceramic crown, Oper Dent. 2009 Sep-Oct <\/figcaption><\/figure>\n\n\n\n

\u6b64\u7d50\u679c\u666e\u904d\u8a8d\u70ba\u662f vertical preparation \u7684\u96e3\u5ea6\u8f03\u4f4e\u3001\u53d6\u6a21\u7c21\u55ae\u3001margin \u4e26\u975e\u5ea7\u843d\u5728\u4e00\u500b\u7d55\u5c0d\u4f4d\u7f6e\u800c\u662f\u5224\u5b9a\u5728\u4e00\u500b\u7bc4\u570d\u4e4b\u9593\uff0c\u5c0e\u81f4\u7522\u751f\u7684 gap \u4e5f\u53ef\u80fd\u8f03\u5c0f\u3002<\/p>\n\n\n\n

\u7259\u5468\u89c0\u9ede<\/strong><\/p>\n\n\n\n

BOPT \u7684 subgingival margin \u8a2d\u8a08\u548c over-contour \u7684\u554f\u984c\u8b93\u4eba\u9867\u616e\u7259\u5468\u5065\u5eb7\u554f\u984c\uff0c\u7136\u800c\u8fd1\u5e74\u4f86\u624d\u958b\u59cb\u767c\u5c55\u4f7f\u7528\u9676\u74f7\u6750\u6599\u505aBOPT\uff0c\u81e8\u5e8a\u7814\u7a76\u8cc7\u6599\u8f03\u6709\u9650789<\/sup>\uff0c\u56e0\u6b64\u9019\u65b9\u9762\u7684\u8cc7\u8a0a\u5c1a\u7121\u5b9a\u8ad6\u3002\u7136\u800c\u53c3\u8003 Paniz\u5b78\u80052016\u5e74\u7684\u6587\u737b7<\/sup>\u53ef\u4ee5\u767c\u73fe BOPT \u5728\u7259\u9f66\u51fa\u8840 (bleeding on probing) \u7684\u8868\u73fe\u660e\u986f\u8f03\u5dee\uff0c\u6216\u8a31\u5b58\u5728\u7259\u9f66\u767c\u708e\u7684\u98a8\u96aa\u3002 <\/p>\n\n\n\n

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\u4e00\u5e74\u8ffd\u8e64 vertical prep \u670952.2% \u6709 bleeding on probing\uff0chorizontal prep 36.5%
source : Paniz G, Periodontal response to two different subgingival restorative margin designs: a 12-month randomized clinical trial, Clin Oral Investig. 2016 July <\/figcaption><\/figure>\n\n\n\n

\u95dc\u65bc\u7259\u5468\u8207\u5047\u7259\u8d0b\u5fa9\u7684\u95dc\u4fc2\uff0cBecker \u5b78\u8005\u4ee3\u8868\u6027\u7684\u6587\u737b10<\/sup>\u5728\u6b64\u63d0\u4f9b\u5927\u5bb6\u53c3\u8003\u3002\u5176\u4e2d\u63d0\u5230\u4ee5\u7259\u5468\u5065\u5eb7\u89d2\u5ea6\uff0c\u76e1\u91cf\u907f\u514dsubgingival margin \u8a2d\u8a08\uff0c\u4ee5\u53ca over-contour \u6bd4\u8d77 under-contour \u7684\u8a2d\u8a08\u4f7f\u7259\u83cc\u6591\u66f4\u4e0d\u5bb9\u6613\u5361\u5728\u7259\u9f66\u6e9d\u4e2d\u4e0d\u6613\u6e05\u9664\u3002<\/p>\n\n\n\n

\u53e6\u5916\u5728\u4f7f\u7528BOPT\u6642\uff0c\u52d9\u5fc5\u8981\u5148 probing \u7259\u5468\u56ca\u888b\u6df1\u5ea6\uff0c\u907f\u514d\u4fb5\u72af biological width \u4ee5\u78ba\u4fdd\u7259\u5468\u5065\u5eb7\u3002<\/p>\n\n\n\n

\u7d50\u8a9e<\/strong><\/h1>\n\n\n\n

\u7d9c\u5408\u4ee5\u4e0a\u6587\u737b\u56de\u9867\u8207\u5c0f\u7d44\u8a0e\u8ad6\uff0c\u9019\u6b21\u8b80\u66f8\u6703\u6210\u54e1\u5011\u6574\u7406\u51fa BOPT \u6700\u5927\u7684\u512a\u9ede\u5728\u65bc\u4fdd\u7559\u9f52\u8cea\uff0c\u5851\u578b\u7259\u8089\u50b3\u7d71\u908a\u7de3\u8a2d\u8a08\u4e5f\u80fd\u8fa6\u7684\u5230\uff0c\u4f46\u56e0 subgingival margin \u9020\u6210\u50b3\u7d71\u908a\u7de3\u8a2d\u8a08\u7121\u53ef\u907f\u514d\u7684\u79fb\u9664\u8f03\u591a\u7684\u9f52\u8cea\uff0c\u5099\u7259\u5370\u6a21\u96e3\u5ea6\u4e5f\u76f8\u5c0d\u8f03\u9ad8\u3002\u5728\u5f37\u5ea6\u8207\u908a\u7de3\u5bc6\u5408\u5ea6\u65b9\u9762BOPT \u8868\u73fe\u826f\u597d\u3002\u7136\u800c\u53ef\u80fd\u6709\u7259\u5468\u767c\u708e\u7684\u98a8\u96aa\uff0c\u5fc5\u9808\u8b39\u614e\u8003\u91cf biological width \u907f\u514d\u4fb5\u72af\u3002\u5728\u6750\u6599\u7684\u9078\u64c7\u4e0a\u76ee\u524d\u6587\u737b\u5927\u591a\u4f7f\u7528\u6c27\u5316\u92ef\u4ee5\u53ca GI cement \u70ba\u4e3b\uff0c\u4f46\u9019\u65b9\u9762\u4e26\u6c92\u6709\u592a\u591a\u6587\u737b\u8a0e\u8ad6\u3002<\/p>\n\n\n\n

Take\nhome massage<\/strong><\/h1>\n\n\n\n

\u5230\u5e95\u4ec0\u9ebc\u6642\u5019\u9069\u5408\u4f7f\u7528 BOPT\uff1f<\/p>\n\n\n\n

\u5728\u8207\u6210\u54e1\u5011\u6df1\u5165\u8a0e\u8ad6\u5f8c\uff0c\u5c31\u500b\u4eba\u89c0\u9ede\u63d0\u4f9b\u5404\u4f4d\u53c3\u8003\uff1a\u5e0c\u671b\u4fdd\u7559\u9f52\u8cea\uff0c\u53c8\u4e0d\u53ef\u907f\u514d\u5730\u9700\u8981 subgingival margin\uff0c\u5728\u4e0d\u4fb5\u72afbiological width \u7684\u60c5\u6cc1\u4e0b\uff0c\u53ef\u4ee5\u8003\u616e\u4f7f\u7528 BOPT\u3002<\/p>\n\n\n\n

\u53c3\u8003\u6587\u737b<\/strong><\/p>\n\n\n\n

1.  Loi I, Biologically\noriented preparation technique (BOPT): a new approach for prosthetic\nrestoration of periodontically healthy teeth, Eur J Esthet Dent. 2013 Spring<\/p>\n\n\n\n

2.  Gergo Mitov, Influence of the preparation design and artificial aging on the fracture resistance of monolithic zirconia crowns, J Adv Prosthodont. 2016 Feb<\/p>\n\n\n\n

3.  Beuer F, effect of preparation design on the fracture resistance of zirconia crown copings, Dent Mater J. 2008 May<\/p>\n\n\n\n

4.  Reich S, The effect of finish line preparation and layer thickness on the failure load and fractography of ZrO2 copings, J Prosthet Dent. 2008 May<\/p>\n\n\n\n

5.  Comlekoglu M, influence of cervical finish line type on the marginal adaptation of zirconia ceramic crown, Oper Dent. 2009 Sep-Oct<\/p>\n\n\n\n

6.  Vigolo P, An In Vivo Evaluation of the Fit of Zirconium-Oxide Based, Ceramic Single Crowns with Vertical and Horizontal Finish Line Preparations , J Prosthodont. 2015 Dec<\/p>\n\n\n\n

7.  Paniz G, Periodontal response to two different subgingival restorative margin designs: a 12-month randomized clinical trial, Clin Oral Investig. 2016 July<\/p>\n\n\n\n

8.  Agust\u00edn-Panadero R, Prospective Clinical Study of Zirconia Full-coverage Restorations on Teeth Prepared With Biologically Oriented Preparation Technique on Gingival Health: Results After Two-year Follow-up, Oper Dent. 2018 Sep\/Oct<\/p>\n\n\n\n

9.  Poggio CE, A retrospective analysis of 102 zirconia single crowns with knife-edge margins, J Prosthet Dent. 2012 May<\/p>\n\n\n\n

10.  Curtis M. Becker, current theories of crown contour margin placement and pontic design, J Prosthet Dent. 1981<\/p>\n","protected":false},"excerpt":{"rendered":"

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