Uspješnost terapije periimplantnih bolesti

U nazad dvadesetak godina ugradnja implantata postala je rutinski zahvat u rekonstrukciji potpuno ili djelomično bezubih pacijenata. Dobivajući sve više na popularnosti, raste broj ugrađenih implantata, ali isto tako i broj neželjenih komplikacija. Jedna od najčešćih bioloških komplikacija implantološke terapije jesu periimplantne bolesti. Periimplantni mukozitis odnosi se na upalu koja je ograničena na mukozu oko implantata, dok periimplantitis predstavlja uznapredovali oblik kod kojega je zahvaćen i gubitak potporne kosti. Periimplantne bolesti najčešće uzrokuju bakterije. Sukladno tome, liječenje mora imati primarno protumikrobnu narav, u smislu supresije oportunističkih patogena i uspostave lokalnog okoliša i mikroflore prisutnih u zdravom tkivu. Terapiju periimplantnih infekcija možemo podijeliti na nekirurški i kirurški pristup. Nekirurški pristup pokazao se učinkovitim u liječenju mukozitisa, ali ne pokazuje zadovoljavajuće rezultate kada je riječ o terapiji periimplantitisa. Cilj je kirurške terapije omogućiti izravan pristup čišćenju i dekontaminaciji površine implantata, spriječiti daljnji gubitak kosti te ovisno o gubitku kosti ispuniti koštani defekt i postići reoseointegraciju. Kirurške tehnike možemo podijeliti na resektivne i regenerativne. Terapija periimplantnih bolesti nije u potpunosti usavršena te je potrebno još mnogo kliničkih istraživanja u pronalasku idealnog jedinstvenog protokola koji jamči uspjeh liječenja. Uspjeh liječenja jednako ovisi o stručnosti i vještini terapeuta kao i o motiviranosti pacijenta u održavanju besprijekorne oralne higijene i redovitom dolasku na kontrolne preglede.Over the past twenty years, the placement of oral implants has become a routine procedure in the reconstruction of fully or partially edentulous patients. As implants are becoming more popular, their number is increasing, especially the number of implants in the jaw. Still, as the number of implants grows, so does the number of adverse complications. Peri-implant diseases are one of the most common biological complications of the implant therapy. Periimplant mucositis is the inflammation limited to the mucosa around the implant, while periimplantitis represents an advanced stage, with affection and loss of the supportive bone. Periimplant diseases are most often caused by the bacterial contamination. The treatment needs to primarily be antimicrobial, i.e. to suppress the opportunistic pathogens and create local environments and conditions of microflora present in the healthy tissue. The therapy of periimplant infections can be categorized as nonsurgical and surgical approach. Nonsurgical approach has shown to be effective in the treatment of mucositis, but doesn’t give as satisfying results in the treatment of periimplantitis. The aim of the surgical therapy is to obtain the direct access for cleaning and decontamination of the implant surface, as well as to manage progressive bone loss, and despite the bone loss, fill the bone defect and gain reoseointegration. Surgical techniques can be divided into resective and regenerative approach. Periimplant therapy has not been completely perfected, and more clinical research is needed to find an ideal, unique protocol which guarantees the success of the treatment. The long term success of the treatment equally depends on the knowledge and skills of the therapist as well as the motivation of the patient to maintain immaculate oral hygiene and to regularly schedule check-up

Uspješnost terapije periimplantnih bolesti

U nazad dvadesetak godina ugradnja implantata postala je rutinski zahvat u rekonstrukciji potpuno ili djelomično bezubih pacijenata. Dobivajući sve više na popularnosti, raste broj ugrađenih implantata, ali isto tako i broj neželjenih komplikacija. Jedna od najčešćih bioloških komplikacija implantološke terapije jesu periimplantne bolesti. Periimplantni mukozitis odnosi se na upalu koja je ograničena na mukozu oko implantata, dok periimplantitis predstavlja uznapredovali oblik kod kojega je zahvaćen i gubitak potporne kosti. Periimplantne bolesti najčešće uzrokuju bakterije. Sukladno tome, liječenje mora imati primarno protumikrobnu narav, u smislu supresije oportunističkih patogena i uspostave lokalnog okoliša i mikroflore prisutnih u zdravom tkivu. Terapiju periimplantnih infekcija možemo podijeliti na nekirurški i kirurški pristup. Nekirurški pristup pokazao se učinkovitim u liječenju mukozitisa, ali ne pokazuje zadovoljavajuće rezultate kada je riječ o terapiji periimplantitisa. Cilj je kirurške terapije omogućiti izravan pristup čišćenju i dekontaminaciji površine implantata, spriječiti daljnji gubitak kosti te ovisno o gubitku kosti ispuniti koštani defekt i postići reoseointegraciju. Kirurške tehnike možemo podijeliti na resektivne i regenerativne. Terapija periimplantnih bolesti nije u potpunosti usavršena te je potrebno još mnogo kliničkih istraživanja u pronalasku idealnog jedinstvenog protokola koji jamči uspjeh liječenja. Uspjeh liječenja jednako ovisi o stručnosti i vještini terapeuta kao i o motiviranosti pacijenta u održavanju besprijekorne oralne higijene i redovitom dolasku na kontrolne preglede.Over the past twenty years, the placement of oral implants has become a routine procedure in the reconstruction of fully or partially edentulous patients. As implants are becoming more popular, their number is increasing, especially the number of implants in the jaw. Still, as the number of implants grows, so does the number of adverse complications. Peri-implant diseases are one of the most common biological complications of the implant therapy. Periimplant mucositis is the inflammation limited to the mucosa around the implant, while periimplantitis represents an advanced stage, with affection and loss of the supportive bone. Periimplant diseases are most often caused by the bacterial contamination. The treatment needs to primarily be antimicrobial, i.e. to suppress the opportunistic pathogens and create local environments and conditions of microflora present in the healthy tissue. The therapy of periimplant infections can be categorized as nonsurgical and surgical approach. Nonsurgical approach has shown to be effective in the treatment of mucositis, but doesn’t give as satisfying results in the treatment of periimplantitis. The aim of the surgical therapy is to obtain the direct access for cleaning and decontamination of the implant surface, as well as to manage progressive bone loss, and despite the bone loss, fill the bone defect and gain reoseointegration. Surgical techniques can be divided into resective and regenerative approach. Periimplant therapy has not been completely perfected, and more clinical research is needed to find an ideal, unique protocol which guarantees the success of the treatment. The long term success of the treatment equally depends on the knowledge and skills of the therapist as well as the motivation of the patient to maintain immaculate oral hygiene and to regularly schedule check-up

Uspješnost terapije periimplantnih bolesti

U nazad dvadesetak godina ugradnja implantata postala je rutinski zahvat u rekonstrukciji potpuno ili djelomično bezubih pacijenata. Dobivajući sve više na popularnosti, raste broj ugrađenih implantata, ali isto tako i broj neželjenih komplikacija. Jedna od najčešćih bioloških komplikacija implantološke terapije jesu periimplantne bolesti. Periimplantni mukozitis odnosi se na upalu koja je ograničena na mukozu oko implantata, dok periimplantitis predstavlja uznapredovali oblik kod kojega je zahvaćen i gubitak potporne kosti. Periimplantne bolesti najčešće uzrokuju bakterije. Sukladno tome, liječenje mora imati primarno protumikrobnu narav, u smislu supresije oportunističkih patogena i uspostave lokalnog okoliša i mikroflore prisutnih u zdravom tkivu. Terapiju periimplantnih infekcija možemo podijeliti na nekirurški i kirurški pristup. Nekirurški pristup pokazao se učinkovitim u liječenju mukozitisa, ali ne pokazuje zadovoljavajuće rezultate kada je riječ o terapiji periimplantitisa. Cilj je kirurške terapije omogućiti izravan pristup čišćenju i dekontaminaciji površine implantata, spriječiti daljnji gubitak kosti te ovisno o gubitku kosti ispuniti koštani defekt i postići reoseointegraciju. Kirurške tehnike možemo podijeliti na resektivne i regenerativne. Terapija periimplantnih bolesti nije u potpunosti usavršena te je potrebno još mnogo kliničkih istraživanja u pronalasku idealnog jedinstvenog protokola koji jamči uspjeh liječenja. Uspjeh liječenja jednako ovisi o stručnosti i vještini terapeuta kao i o motiviranosti pacijenta u održavanju besprijekorne oralne higijene i redovitom dolasku na kontrolne preglede.Over the past twenty years, the placement of oral implants has become a routine procedure in the reconstruction of fully or partially edentulous patients. As implants are becoming more popular, their number is increasing, especially the number of implants in the jaw. Still, as the number of implants grows, so does the number of adverse complications. Peri-implant diseases are one of the most common biological complications of the implant therapy. Periimplant mucositis is the inflammation limited to the mucosa around the implant, while periimplantitis represents an advanced stage, with affection and loss of the supportive bone. Periimplant diseases are most often caused by the bacterial contamination. The treatment needs to primarily be antimicrobial, i.e. to suppress the opportunistic pathogens and create local environments and conditions of microflora present in the healthy tissue. The therapy of periimplant infections can be categorized as nonsurgical and surgical approach. Nonsurgical approach has shown to be effective in the treatment of mucositis, but doesn’t give as satisfying results in the treatment of periimplantitis. The aim of the surgical therapy is to obtain the direct access for cleaning and decontamination of the implant surface, as well as to manage progressive bone loss, and despite the bone loss, fill the bone defect and gain reoseointegration. Surgical techniques can be divided into resective and regenerative approach. Periimplant therapy has not been completely perfected, and more clinical research is needed to find an ideal, unique protocol which guarantees the success of the treatment. The long term success of the treatment equally depends on the knowledge and skills of the therapist as well as the motivation of the patient to maintain immaculate oral hygiene and to regularly schedule check-up

THE PERSISTENCE OF TRACHYTE-TRACHYANDESITE BUILT INTO PEDESTRIAN-ROADWAY CONSTRUCTION

Prirodni kamen određen kao trahit-trahiandezit s lokaliteta Colli Euganei u blizini Padove u Italiji ugrađen je na kolničko-pješačkoj konstrukciji Tkalćičeve ulice u Zagrebu. Uzorci kamena, prije ugradnjie, podvrgnuti su brojnim određivanjima fizičkih i mehaničkih svojstava (gustoće, volumne mase, upijanja vode, poroznosti, tlačne čvrstoće, otpornosti na habanje struganjem, čvrstoće na savijanje, postojanosti na smrzavanje i na Na2SO4, brzine prolaza ultrazvučnih valova, te mikroskopskim i rendgenskim analizama, fotografiranju elektronskim mikroskopom). Utvrđeno je da oko 30% ugrađenog kamena ne odgovara postojećim važećim ili opće prihvaćenim kriteri¬jima o kakvoći prirodnog kamena. Povećanog je upijanja vode i po¬roznosti, velikog pada tlačnih čvrstoća u vodom zasićenom stanju, nedovoljno otporan na habanje i na Na2SO4, anizotropan, sadrži bu-breće gline iz skupine smektita, te brojne defekte posebice u obliku mikroblokova kao posljedice postdijagenetskih procesa. Premda uzorci pripadaju istoj vrsti stijene, razlike medu kamenim elementima su velike. Makroskopski gledajući materijal je vrlo heterogen. U uzorcima kamena slabije kakvoće nalaze se manje ili više brojni subparalelni smeđi i sivi proslojci debljine približno 1—2 mm s povećanim udjelom sekundarnih minerala željeza, Željezovi oksidi i hidroksidi manje ili više impregniraju dijelove stijene, mrljasto ili trakasto, a ponegdje je intenzivno impregniran i čitav uzorak. Impregnaciju intenziviraju bubreće gline i brojne šupljine duž kojih se kamen osipava.Natural stone defined as trachyte-trachyandesite from the locality Colli Euganei near Padua in Italy is built into roadway-pedestrian construction of the Tkalčićcva street in Zagreb. Stone samples were subjected before in-building, to determinations of physical and mecha¬nical properties (density, bulk density, water absorption, porosity, compressive strength, resistance to abrasion, flexural strength, frost resistance and to Na2SO4, velocity of ultrasonic propagation, micros¬copic and X ray analyses and to photographing by electronic micros¬cope. It was found that about 30% in-built stones do not suit to existing criteria on the quality of natural stone. Water absorption and porosity are increased, compressive strength in the water saturated condition is very decreased, the stone is not enough resistant to wear-out and to Na2S04, it is anisotropic and contains swelling clays of the smectite group and numerous defects especially in form of microblocks as consequences of postdiagenetic processes. Although the samples belong to the same rock type, the differences among stone elements are great. Macroscopically materia! is very heterogeneous. In less qualitative stone samples there are more or less numerous sub-parallel brown and gray partings of the thickness approximately 1 -2 mm with enlarged share of secondary iron minerals. Iron oxides and hydroxides mainly impregnate the rock parts, spotty or stripy; somewhere the complete sample is impregnated intensively. The impregnation is intensified by swelling clays and numerous holes along which stone is crumbling