{"id":{"repo_id":"greece","oai_identifier":"oai:10442/1047"},"canonical_url":"https://search.dev.ndltd.org/etd/greece/oai:10442/1047","repository":{"repo_id":"greece","name":"Greek National Archive of PhD Theses","base_url":"https://phdtheses.ekt.gr/eadd_oai/request"},"display":{"title":"ΣΥΜΒΟΛΗ ΣΤΗ ΜΕΛΕΤΗ ΟΡΙΣΜΕΝΩΝ ΦΥΣΙΚΩΝ ΙΔΙΟΤΗΤΩΝ ΤΩΝ ΚΕΡΙΩΝ ΟΔΟΝΤΟΣΤΟΙΧΙΩΝ","abstract":"IN THE PRESENT STUDY A KINETIC INVESTIGATION OF THE CHANGES IN SHAPE OF DENTAL MODELLING WAXES AFTER THEIR MANIPULATION IN VARIOUS TEMPERATURES IS CONDUCTED. THE POSSIBILITY OF CORRELATING THESE CHANGES TO THE PROPERTIES OF FLOW AND LINEAR THERMAL EXPANSION, WHICH WERE CALCULATED EXPERIMENTALLY WITHIN THE SAME TEMPERATURE RANGE, IS ALSO EXAMINED. THREE DENTAL MODELLING WAXES WERE USED, AS WELL AS BEESWAX AND A WAX COMPOSED IN THE LABORATORY. IT WAS FOUND THAT ALL THE MATERIALS, SUBJECTED TO THE KINETIC STUDY OF DEFORMATION HAD UNDERGONE SHAPE-CHANGES, ESPECIALLY AFTER HEATING AT 27 C AND 47 C. THE FLOW VALUES MEASURED ARE RELATED TO THE CORRESPONDING SHAPE CHANGES. ON THE CONTRARY THE LINEAR EXPANSION OF THE MATERIALS DO NOT SEEM TO AFFECT THEIR BEHAVIOUR DURING THE KINETIC DEFORMATION STUDY. AT LOW INITIAL TEMPERATURES (27 C) THE DISTORTION OF THE SAMPLES IS MOST PROBABLY THE RESULT OF THE RELEASE OF INTERNAL STRESSES INTRODUCED DURING THE MANIPULATION OF THE WAX.","abstract_html":"IN THE PRESENT STUDY A KINETIC INVESTIGATION OF THE CHANGES IN SHAPE OF DENTAL MODELLING WAXES AFTER THEIR MANIPULATION IN VARIOUS TEMPERATURES IS CONDUCTED. THE POSSIBILITY OF CORRELATING THESE CHANGES TO THE PROPERTIES OF FLOW AND LINEAR THERMAL EXPANSION, WHICH WERE CALCULATED EXPERIMENTALLY WITHIN THE SAME TEMPERATURE RANGE, IS ALSO EXAMINED. THREE DENTAL MODELLING WAXES WERE USED, AS WELL AS BEESWAX AND A WAX COMPOSED IN THE LABORATORY. IT WAS FOUND THAT ALL THE MATERIALS, SUBJECTED TO THE KINETIC STUDY OF DEFORMATION HAD UNDERGONE SHAPE-CHANGES, ESPECIALLY AFTER HEATING AT 27 C AND 47 C. THE FLOW VALUES MEASURED ARE RELATED TO THE CORRESPONDING SHAPE CHANGES. ON THE CONTRARY THE LINEAR EXPANSION OF THE MATERIALS DO NOT SEEM TO AFFECT THEIR BEHAVIOUR DURING THE KINETIC DEFORMATION STUDY. AT LOW INITIAL TEMPERATURES (27 C) THE DISTORTION OF THE SAMPLES IS MOST PROBABLY THE RESULT OF THE RELEASE OF INTERNAL STRESSES INTRODUCED DURING THE MANIPULATION OF THE WAX.","abstract_has_math":false,"creators":["Kotsiomiti, Eleni","Κωτσιομύτη, Ελένη"],"institution":"Aristotle University Of Thessaloniki (AUTH)","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":1988,"date_issued":"1988","date_published":"1988","updated_at":"2026-07-24T02:24:43Z","subjects":["Διαστολή","Κερί","Παραμόρφωση","Ρευστότητα","Deformation","Expansion","Flows","Wax","Ιατρική και Επιστήμες Υγείας","Κλινική Ιατρική","Medical and Health Sciences","Clinical Medicine"],"languages":["gre"],"rights":[],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["10.12681/eadd/1047"],"render_values":[{"text":"10.12681/eadd/1047","href":"https://doi.org/10.12681/eadd/1047","code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/10442/hedi/1047","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:creator","label":"Author","values":["Kotsiomiti, Eleni","Κωτσιομύτη, Ελένη"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["1988"]},{"key":"dc:publisher","label":"Institution","values":["Aristotle University Of Thessaloniki (AUTH)","Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης (ΑΠΘ)"]},{"key":"dc:type","label":"Dc Type","values":["PhD Thesis"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Διαστολή","Κερί","Παραμόρφωση","Ρευστότητα","Deformation","Expansion","Flows","Wax","Ιατρική και Επιστήμες Υγείας","Κλινική Ιατρική","Medical and Health Sciences","Clinical Medicine"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["gre"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["10.12681/eadd/1047","http://hdl.handle.net/10442/hedi/1047"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["IN THE PRESENT STUDY A KINETIC INVESTIGATION OF THE CHANGES IN SHAPE OF DENTAL MODELLING WAXES AFTER THEIR MANIPULATION IN VARIOUS TEMPERATURES IS CONDUCTED. THE POSSIBILITY OF CORRELATING THESE CHANGES TO THE PROPERTIES OF FLOW AND LINEAR THERMAL EXPANSION, WHICH WERE CALCULATED EXPERIMENTALLY WITHIN THE SAME TEMPERATURE RANGE, IS ALSO EXAMINED. THREE DENTAL MODELLING WAXES WERE USED, AS WELL AS BEESWAX AND A WAX COMPOSED IN THE LABORATORY. IT WAS FOUND THAT ALL THE MATERIALS, SUBJECTED TO THE KINETIC STUDY OF DEFORMATION HAD UNDERGONE SHAPE-CHANGES, ESPECIALLY AFTER HEATING AT 27 C AND 47 C. THE FLOW VALUES MEASURED ARE RELATED TO THE CORRESPONDING SHAPE CHANGES. ON THE CONTRARY THE LINEAR EXPANSION OF THE MATERIALS DO NOT SEEM TO AFFECT THEIR BEHAVIOUR DURING THE KINETIC DEFORMATION STUDY. AT LOW INITIAL TEMPERATURES (27 C) THE DISTORTION OF THE SAMPLES IS MOST PROBABLY THE RESULT OF THE RELEASE OF INTERNAL STRESSES INTRODUCED DURING THE MANIPULATION OF THE WAX.","ΣΤΗΝ ΕΡΓΑΣΙΑ ΑΥΤΗ ΠΑΡΟΥΣΙΑΖΕΤΑΙ ΜΙΑ ΚΙΝΗΤΙΚΗ ΜΕΛΕΤΗ ΤΩΝ ΜΕΤΑΒΟΛΩΝ ΤΟΥ ΣΧΗΜΑΤΟΣ ΤΩΝ ΚΕΡΙΩΝ ΟΔΟΝΤΟΣΤΟΙΧΙΩΝ ΜΕΤΑ ΤΟ ΧΕΙΡΙΣΜΟ ΤΟΥΣ ΣΕ ΔΙΑΦΟΡΕΣ ΘΕΡΜΟΚΡΑΣΙΕΣ. ΕΞΕΤΑΖΕΤΑΙ ΕΠΙΣΗΣ Η ΕΝΔΕΧΟΜΕΝΗ ΣΥΣΧΕΤΙΣΗ ΑΥΤΩΝ ΤΩΝ ΜΕΤΑΒΟΛΩΝ ΜΕ ΤΙΣ ΤΙΜΕΣ ΤΩΝ ΙΔΙΟΤΗΤΩΝ ΤΗΣ ΡΕΥΣΤΟΤΗΤΑΣ ΚΑΙ ΤΗΣ ΓΡΑΜΜΙΚΗΣ ΔΙΑΣΤΟΛΗΣ, ΠΟΥ ΜΕΤΡΗΘΗΚΑΝ ΠΕΙΡΑΜΑΤΙΚΑ ΣΤΗΝ ΙΔΙΑ ΠΕΡΙΟΧΗ ΘΕΡΜΟΚΡΑΣΙΩΝ. ΕΚΤΟΣ ΑΠΟ ΚΕΡΙΑ ΟΔΟΝΤΟΣΤΟΙΧΙΩΝ ΤΟΥ ΕΜΠΟΡΙΟΥ, ΧΡΗΣΙΜΟΠΟΙΗΣΑΜΕ ΚΑΙ ΚΕΡΙ ΜΕΛΙΣΣΩΝ, ΚΑΘΩΣ ΚΑΙ ΚΕΡΙ ΠΟΥ ΠΑΡΑΣΚΕΥΑΣΑΜΕ ΣΤΟ ΕΡΓΑΣΤΗΡΙΟ ΟΔΟΝΤΙΚΗΣ ΚΑΙ ΑΝΩΤΕΡΑΣ ΠΡΟΣΘΕΤΙΚΗΣ ΤΟΥ ΑΠΘ. ΔΙΑΠΙΣΤΩΣΑΜΕ ΟΤΙ ΟΛΑ ΤΑ ΥΛΙΚΑ ΠΑΡΟΥΣΙΑΣΑΝ ΜΕΤΑΒΟΛΗ ΤΟΥ ΣΧΗΜΑΤΟΣ ΤΟΥΣ, ΕΙΔΙΚΑ ΜΕΤΑ ΑΠΟ ΘΕΡΜΑΝΣΗ ΣΕ ΘΕΡΜΟΚΡΑΣΙΑ 27 ΚΑΙ 47 C. ΟΙ ΤΙΜΕΣ ΡΕΥΣΤΟΤΗΤΑΣ ΠΟΥ ΠΑΡΟΥΣΙΑΣΑΝ ΤΑ ΥΛΙΚΑ ΜΠΟΡΟΥΣΑΝ ΠΡΑΓΜΑΤΙ ΝΑ ΣΥΣΧΕΤΙΣΘΟΥΝ ΜΕ ΤΙΣ ΑΝΤΙΣΤΟΙΧΕΣ ΤΙΜΕΣ ΠΑΡΑΜΟΡΦΩΣΗΣ. ΑΝΤΙΘΕΤΑ, Η ΜΕΛΕΤΗ ΤΩΝ ΓΡΑΜΜΙΚΩΝ ΜΕΤΑΒΟΛΩΝ ΕΔΕΙΞΕ ΟΤΙ ΑΥΤΕΣ ΔΕΝ ΕΠΗΡΕΑΖΟΥΝ ΤΗ ΣΥΜΠΕΡΙΦΟΡΑ ΤΩΝ ΥΛΙΚΩΝ ΚΑΤΑ ΤΗΝΚΙΝΗΤΙΚΗ ΤΗΣ ΠΑΡΑΜΟΡΦΩΣΗΣ. ΣΕ ΧΑΜΗΛΕΣ ΑΡΧΙΚΕΣ ΘΕΡΜΟΚΡΑΣΙΕΣ ΦΑΙΝΕΤΑΙ ΟΤΙ Η ΜΕΤΑΒΟΛΗ ΤΟΥ ΣΧΗΜΑΤΟΣ ΤΩΝ ΥΛΙΚΩΝ ΥΠΑΓΟΡΕΥΕΤΑΙ ΑΠΟ ΦΑΙΝΟΜΕΝΑ ΑΠΕΛΕΥΘΕΡΩΣΗΣ ΕΣΩΤΕΡΙΚΩΝ ΤΑΣΕΩΝ."]},{"key":"dc:title","label":"Title","values":["ΣΥΜΒΟΛΗ ΣΤΗ ΜΕΛΕΤΗ ΟΡΙΣΜΕΝΩΝ ΦΥΣΙΚΩΝ ΙΔΙΟΤΗΤΩΝ ΤΩΝ ΚΕΡΙΩΝ ΟΔΟΝΤΟΣΤΟΙΧΙΩΝ","PHYSICAL PROPERTIES OF SOME DENTAL MODELLING WAXES"]}]}],"canonical_facts":{"dc:creator":["Kotsiomiti, Eleni","Κωτσιομύτη, Ελένη"],"dc:date":["1988"],"dc:description":["IN THE PRESENT STUDY A KINETIC INVESTIGATION OF THE CHANGES IN SHAPE OF DENTAL MODELLING WAXES AFTER THEIR MANIPULATION IN VARIOUS TEMPERATURES IS CONDUCTED. THE POSSIBILITY OF CORRELATING THESE CHANGES TO THE PROPERTIES OF FLOW AND LINEAR THERMAL EXPANSION, WHICH WERE CALCULATED EXPERIMENTALLY WITHIN THE SAME TEMPERATURE RANGE, IS ALSO EXAMINED. THREE DENTAL MODELLING WAXES WERE USED, AS WELL AS BEESWAX AND A WAX COMPOSED IN THE LABORATORY. IT WAS FOUND THAT ALL THE MATERIALS, SUBJECTED TO THE KINETIC STUDY OF DEFORMATION HAD UNDERGONE SHAPE-CHANGES, ESPECIALLY AFTER HEATING AT 27 C AND 47 C. THE FLOW VALUES MEASURED ARE RELATED TO THE CORRESPONDING SHAPE CHANGES. ON THE CONTRARY THE LINEAR EXPANSION OF THE MATERIALS DO NOT SEEM TO AFFECT THEIR BEHAVIOUR DURING THE KINETIC DEFORMATION STUDY. AT LOW INITIAL TEMPERATURES (27 C) THE DISTORTION OF THE SAMPLES IS MOST PROBABLY THE RESULT OF THE RELEASE OF INTERNAL STRESSES INTRODUCED DURING THE MANIPULATION OF THE WAX.","ΣΤΗΝ ΕΡΓΑΣΙΑ ΑΥΤΗ ΠΑΡΟΥΣΙΑΖΕΤΑΙ ΜΙΑ ΚΙΝΗΤΙΚΗ ΜΕΛΕΤΗ ΤΩΝ ΜΕΤΑΒΟΛΩΝ ΤΟΥ ΣΧΗΜΑΤΟΣ ΤΩΝ ΚΕΡΙΩΝ ΟΔΟΝΤΟΣΤΟΙΧΙΩΝ ΜΕΤΑ ΤΟ ΧΕΙΡΙΣΜΟ ΤΟΥΣ ΣΕ ΔΙΑΦΟΡΕΣ ΘΕΡΜΟΚΡΑΣΙΕΣ. ΕΞΕΤΑΖΕΤΑΙ ΕΠΙΣΗΣ Η ΕΝΔΕΧΟΜΕΝΗ ΣΥΣΧΕΤΙΣΗ ΑΥΤΩΝ ΤΩΝ ΜΕΤΑΒΟΛΩΝ ΜΕ ΤΙΣ ΤΙΜΕΣ ΤΩΝ ΙΔΙΟΤΗΤΩΝ ΤΗΣ ΡΕΥΣΤΟΤΗΤΑΣ ΚΑΙ ΤΗΣ ΓΡΑΜΜΙΚΗΣ ΔΙΑΣΤΟΛΗΣ, ΠΟΥ ΜΕΤΡΗΘΗΚΑΝ ΠΕΙΡΑΜΑΤΙΚΑ ΣΤΗΝ ΙΔΙΑ ΠΕΡΙΟΧΗ ΘΕΡΜΟΚΡΑΣΙΩΝ. ΕΚΤΟΣ ΑΠΟ ΚΕΡΙΑ ΟΔΟΝΤΟΣΤΟΙΧΙΩΝ ΤΟΥ ΕΜΠΟΡΙΟΥ, ΧΡΗΣΙΜΟΠΟΙΗΣΑΜΕ ΚΑΙ ΚΕΡΙ ΜΕΛΙΣΣΩΝ, ΚΑΘΩΣ ΚΑΙ ΚΕΡΙ ΠΟΥ ΠΑΡΑΣΚΕΥΑΣΑΜΕ ΣΤΟ ΕΡΓΑΣΤΗΡΙΟ ΟΔΟΝΤΙΚΗΣ ΚΑΙ ΑΝΩΤΕΡΑΣ ΠΡΟΣΘΕΤΙΚΗΣ ΤΟΥ ΑΠΘ. ΔΙΑΠΙΣΤΩΣΑΜΕ ΟΤΙ ΟΛΑ ΤΑ ΥΛΙΚΑ ΠΑΡΟΥΣΙΑΣΑΝ ΜΕΤΑΒΟΛΗ ΤΟΥ ΣΧΗΜΑΤΟΣ ΤΟΥΣ, ΕΙΔΙΚΑ ΜΕΤΑ ΑΠΟ ΘΕΡΜΑΝΣΗ ΣΕ ΘΕΡΜΟΚΡΑΣΙΑ 27 ΚΑΙ 47 C. ΟΙ ΤΙΜΕΣ ΡΕΥΣΤΟΤΗΤΑΣ ΠΟΥ ΠΑΡΟΥΣΙΑΣΑΝ ΤΑ ΥΛΙΚΑ ΜΠΟΡΟΥΣΑΝ ΠΡΑΓΜΑΤΙ ΝΑ ΣΥΣΧΕΤΙΣΘΟΥΝ ΜΕ ΤΙΣ ΑΝΤΙΣΤΟΙΧΕΣ ΤΙΜΕΣ ΠΑΡΑΜΟΡΦΩΣΗΣ. ΑΝΤΙΘΕΤΑ, Η ΜΕΛΕΤΗ ΤΩΝ ΓΡΑΜΜΙΚΩΝ ΜΕΤΑΒΟΛΩΝ ΕΔΕΙΞΕ ΟΤΙ ΑΥΤΕΣ ΔΕΝ ΕΠΗΡΕΑΖΟΥΝ ΤΗ ΣΥΜΠΕΡΙΦΟΡΑ ΤΩΝ ΥΛΙΚΩΝ ΚΑΤΑ ΤΗΝΚΙΝΗΤΙΚΗ ΤΗΣ ΠΑΡΑΜΟΡΦΩΣΗΣ. ΣΕ ΧΑΜΗΛΕΣ ΑΡΧΙΚΕΣ ΘΕΡΜΟΚΡΑΣΙΕΣ ΦΑΙΝΕΤΑΙ ΟΤΙ Η ΜΕΤΑΒΟΛΗ ΤΟΥ ΣΧΗΜΑΤΟΣ ΤΩΝ ΥΛΙΚΩΝ ΥΠΑΓΟΡΕΥΕΤΑΙ ΑΠΟ ΦΑΙΝΟΜΕΝΑ ΑΠΕΛΕΥΘΕΡΩΣΗΣ ΕΣΩΤΕΡΙΚΩΝ ΤΑΣΕΩΝ."],"dc:identifier":["10.12681/eadd/1047","http://hdl.handle.net/10442/hedi/1047"],"dc:language":["gre"],"dc:publisher":["Aristotle University Of Thessaloniki (AUTH)","Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης (ΑΠΘ)"],"dc:subject":["Διαστολή","Κερί","Παραμόρφωση","Ρευστότητα","Deformation","Expansion","Flows","Wax","Ιατρική και Επιστήμες Υγείας","Κλινική Ιατρική","Medical and Health Sciences","Clinical Medicine"],"dc:title":["ΣΥΜΒΟΛΗ ΣΤΗ ΜΕΛΕΤΗ ΟΡΙΣΜΕΝΩΝ ΦΥΣΙΚΩΝ ΙΔΙΟΤΗΤΩΝ ΤΩΝ ΚΕΡΙΩΝ ΟΔΟΝΤΟΣΤΟΙΧΙΩΝ","PHYSICAL PROPERTIES OF SOME DENTAL MODELLING WAXES"],"dc:type":["PhD Thesis"]},"updated_at":"2026-07-24T02:24:43Z"}