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The review compares horizontal and vertical (verti prep) approaches across different crown types while considering the invasive nature of preparation and irreversible loss of tooth hard tissues.",{"@graph":14,"@context":69},[15,34,56],{"@type":16,"itemListElement":17},"BreadcrumbList",[18,23,27,31],{"item":19,"name":20,"@type":21,"position":22},"https://docshare.wps.com","Home","ListItem",1,{"item":24,"name":25,"@type":21,"position":26},"https://docshare.wps.com/document/","Document",2,{"item":28,"name":29,"@type":21,"position":30},"https://docshare.wps.com/document/healthcare/","Healthcare",3,{"item":32,"name":10,"@type":21,"position":33},"https://docshare.wps.com/document/comparison-of-horizontal-and-vertical-methods-of-tooth-preparation-for-a-prosthetic-crown/402620/",4,{"url":32,"name":10,"@type":35,"image":36,"author":41,"headline":10,"publisher":44,"fileFormat":47,"inLanguage":8,"description":12,"dateModified":48,"datePublished":49,"encodingFormat":47,"isAccessibleForFree":50,"interactionStatistic":51},"DigitalDocument",{"url":37,"@type":38,"width":39,"height":40},"https://docshare.wps.com/thumbnails/comparison-of-horizontal-and-vertical-methods-of-tooth-preparation-for-a-prosthetic-crown/402620.png","ImageObject",300,407,{"name":42,"@type":43},"Noah","Person",{"url":19,"name":45,"@type":46},"DocShare","Organization","application/pdf","2026-11-04","2026-09-27",true,{"@type":52,"interactionType":53,"userInteractionCount":55},"InteractionCounter",{"@type":54},"ViewAction",10,{"@type":57,"mainEntity":58},"FAQPage",[59,65],{"name":60,"@type":61,"acceptedAnswer":62},"What factors influence the choice of a finish line for crown preparation?","Question",{"text":63,"@type":64},"The finish line depends on factors such as pulp vitality, tooth location and inclination, restoration material, crown convexity, patient age, and the size of the construction (single crown vs bridge).","Answer",{"name":66,"@type":61,"acceptedAnswer":67},"Is there a single universal recommended tooth preparation type for all clinical situations?",{"text":68,"@type":64},"No. Current research confirms there is no single universal type recommended in all cases; clinical context and intra-procedural decisions can affect the preparation choice.","https://schema.org",{"og:url":32,"og:type":71,"og:title":10,"og:site_name":45,"og:description":12},"article",{"robots":73,"canonical":32},"index,follow",{"doc_id":75,"site_id":7},402620,1791091902,{"code":4,"msg":78,"data":79},"success",[80,84,88,92,97,102,106,111,116,119,122],{"id":22,"doc_module":4,"doc_module_name":25,"category_name":81,"show_sort_weight":82,"slug":83},"Story & Novel",90,"story-novel",{"id":26,"doc_module":4,"doc_module_name":25,"category_name":85,"show_sort_weight":86,"slug":87},"Literature",80,"literature",{"id":33,"doc_module":4,"doc_module_name":25,"category_name":89,"show_sort_weight":90,"slug":91},"Exam",70,"exam",{"id":93,"doc_module":4,"doc_module_name":25,"category_name":94,"show_sort_weight":95,"slug":96},5,"Comic",60,"comic",{"id":98,"doc_module":4,"doc_module_name":25,"category_name":99,"show_sort_weight":100,"slug":101},6,"Technology",50,"technology",{"id":103,"doc_module":4,"doc_module_name":25,"category_name":29,"show_sort_weight":104,"slug":105},7,40,"healthcare",{"id":107,"doc_module":4,"doc_module_name":25,"category_name":108,"show_sort_weight":109,"slug":110},8,"Research & Report",30,"research-report",{"id":112,"doc_module":4,"doc_module_name":25,"category_name":113,"show_sort_weight":114,"slug":115},9,"Religion & Spirituality",20,"religion-spirituality",{"id":114,"doc_module":4,"doc_module_name":25,"category_name":117,"show_sort_weight":114,"slug":118},"World Cup","world-cup",{"id":55,"doc_module":4,"doc_module_name":25,"category_name":120,"show_sort_weight":55,"slug":121},"Lifestyle","lifestyle",{"id":123,"doc_module":4,"doc_module_name":25,"category_name":124,"show_sort_weight":93,"slug":125},19,"General","general",{"code":4,"msg":78,"data":127},{"doc_id":75,"user_id":128,"nickname":42,"user_avatar":129,"doc_module":4,"category_id":103,"category_name":29,"doc_title":10,"doc_description":12,"doc_content":130,"file_id":131,"file_url":132,"file_type":133,"file_size":134,"view_count":55,"is_deleted":4,"is_public":22,"is_downloadable":22,"audit_status":22,"page_count":33,"language":135,"language_code":8,"site_id":7,"html_lang":8,"table_of_contents":136,"faqs":137,"seo_title":138,"seo_description":12,"update_tm":139,"read_time":55,"preview_page_count":4},8796095462418,"https://ap-avatar.wpscdn.com/avatar/80000253c1241d02b47?x-image-process=image/resize,m_fixed,w_180,h_180&k=1778826106357471780","REVIEW ARTICLE  \nJournal of Pre-Clinical and Clinical Research 2020, Vol 14, No 1, 25-28  \n[www.jpccr.eu](www.jpccr.eu)  \nComparison of horizontal and vertical methods of tooth preparation for a prosthetic crown  \nPaweł Łabno1,A-F , Krzysztof Drobnik1,A-F   \n1 Outpatient Department for Dental Prosthetics No. 1, Medical University, Łódź, Poland  \nA – Research concept and design, B – Collection and/or assembly of data, C – Data analysis and interpretation, D – Writing the article, E – Critical revision of the article, F – Final approval of article  \nŁabno P, Drobnik K. Comparison of horizontal and vertical methods of teeth preparation for a prosthetic crown. J Pre-Clin Clin Res. 2020; 14(1): 25–28. doi: 10.26444/jpccr/116672  \nAbstract  \nThe application of magnifying devices, such as magnifiers, microscopes, precision drills, intraoral scanners, printed models, milled, and monolithic restorations, increases the precision of the preparation, accuracy of workmanship and marginal tightness, ultimately providing a very high level of quality of prosthetic restoration. The article compares the pros and cons of several types of tooth preparations for different kinds of crowns, including the modern concept of verti prep (vertical preparation).  \nTooth preparation for a prosthetic crown is always invasive in character and leads to irreversible loss of tooth hard tissues. In the case of tooth preparation with vital dental pulp there is a risk of its irritation, inflammation, necrosis, and endodontic treatment in the future. A variety of attempts have been made in dental prosthetics to develop the best method of tooth preparation, which – on the one hand – would ensure adequate marginal fit, emergency profile, and at the same time, would lead to the least loss of enamel and dentine ithe preparation process. Current research has confirmed, that thereis no single universal and recommended in all cases type of tooth preparation for a prosthetic crown. The choice of a finish line depends on a number of factors, such as pulp vitality, location of the tooth, its inclination, type of material from which a restoration will be manufactured, crown convexity, patient’s age and the size of such a construction. It should be emphasized atthe same time that in some clinical situations, the decision on the type of preparation and/or reconstruction to be made is taken intra-procedurally.  \nKey words  \ndentistry, crowns, prosthetics, marginal fit, finish line, BOPT, fixed restorations, verti prep  \nINTRODUCTION  \nFor many years tooth crown preparation with vertical finish lines (knife edge, feather edge) has been a method of treatment by choice due to the applied technique of making Scharp’s crowns. The implementation of metal-casting technology made it possible to produce prosthetic crowns on shoulderprep abutments with horizontal finish lines (shoulder and chamfer). It was then possible to compare both methods, and the following drawbacks of vertical preparation were most often noticed: overhangs, uneven edges, biological width disruption, lack of aesthetic appearance, over-contouring, difficulty of determining a finishing line, lack of control on marginal seal and integrity, damage to the epithelial attachment and unpredictable tissue healing, difficulties in removing cement excess, etc. Many disadvantages of vertical finish line made shoulder preparation become acknowledged by the academic world as the gold standard [1]. There is currently a dissonance in everyday practice of a dental prosthetist between preserving red white aesthetics where a significant amount of tooth structure is removed to achieve correct chamfer or shoulder finish line, and planning minimally intensive preparation which requires quite the opposite [2, 3].  \nThe application of magnifying device, such as dental loupes, microscope, more common use of precision drills, intraoral scanners, printed models, milled, and monolithic  \nAddress for correspondence: Paweł Łabno, Outpatient Depa","cbCaivw5TH1ieo2H","https://ap.wps.com/l/cbCaivw5TH1ieo2H","pdf",460414,"English","# Introduction\n# Tooth preparation methods: horizontal vs vertical\n## Clinical considerations and factors\n# Technology and workflow for improved precision\n# Conclusion and decision-making in preparation","[{\"question\":\"What factors influence the choice of a finish line for crown preparation?\",\"answer\":\"The finish line depends on factors such as pulp vitality, tooth location and inclination, restoration material, crown convexity, patient age, and the size of the construction (single crown vs bridge).\"},{\"question\":\"Is there a single universal recommended tooth preparation type for all clinical situations?\",\"answer\":\"No. Current research confirms there is no single universal type recommended in all cases; clinical context and intra-procedural decisions can affect the preparation choice.\"}]","Comparison of horizontal and vertical methods of tooth preparation for a prosthetic crown | PDF",1790532179]