Effects of Two Different Acid Etching and Surface Washing Methods on Bond Strength on Different CAD-CAM Blocks under Aging Protocols

<table class="table-group" id="tab3"><tr><td><table class="table"><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr class="thead"><td class="align_left" rowspan="4">Surface treatments</td><td class="align_center" colspan="4">Block</td></tr><tr class="thead"><td class="align_center" colspan="2">e.max CAD</td><td class="align_center" colspan="2">Celtra Duo</td></tr><tr class="thead"><td class="align_center">TS</td><td class="align_center">TL</td><td class="align_center">TS</td><td class="align_center">TL</td></tr><tr class="thead"><td class="align_center"><span style="width: 58.8493ptpx;"><svg height="9.10327pt" id="M12" style="vertical-align:-0.3499298pt" version="1.1" viewbox="-0.0498162 -8.75334 58.8493 9.10327" width="58.8493pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M861 0V28C774 35 771 41 768 147L759 509C756 612 762 614 851 622V650H681L449 149L221 650H57V622C148 613 153 609 144 479L130 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499L409 504Z"></path></g><g transform="matrix(.013,0,0,-0.013,49.107,0)"><path d="M43 650V622C120 616 128 612 128 526V124C128 39 120 33 34 27V0H270C392 0 492 25 567 83C643 141 690 230 690 350C690 444 655 517 605 565C543 625 450 650 323 650H43ZM213 547C213 587 217 598 226 604C236 612 262 617 304 617C371 617 429 604 474 576C554 529 592 439 592 336C592 176 505 36 319 36C246 36 213 55 213 131V547Z"></path></g></svg></span></td></tr><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr><td class="align_left">HF + W</td><td class="align_center">17.71±.41<sup>Aa</sup></td><td class="align_center">9.48±.25<sup>Aa</sup></td><td class="align_center">19.02±.32<sup>Ba</sup></td><td class="align_center">11.76±.28<sup>Ba</sup></td></tr><tr><td class="align_left">HF + PA</td><td class="align_center">18.96±.27<sup>Ab</sup></td><td class="align_center">11.84±.35<sup>Ab</sup></td><td class="align_center">20.11±.32<sup>Bb</sup></td><td class="align_center">13.32±.18<sup>Bb</sup></td></tr><tr><td class="align_left">HF + US</td><td class="align_center">20.07±.31<sup>Ac</sup></td><td class="align_center">13.72±.19<sup>Ac</sup></td><td class="align_center">22.29±.19<sup>Bb</sup></td><td class="align_center">16.33±.18<sup>Bc</sup></td></tr><tr><td class="align_left">MEP + W</td><td class="align_center">16.08±.20<sup>Ad</sup></td><td class="align_center">7.63±.27<sup>Ad</sup></td><td class="align_center">17.23±.13<sup>Bc</sup></td><td class="align_center">9.47±.22<sup>Bd</sup></td></tr><tr><td class="align_left">MEP + PA</td><td class="align_center">13.09±.30<sup>Ae</sup></td><td class="align_center">5.88±.38<sup>Ae</sup></td><td class="align_center">14.75±.25<sup>Ba</sup></td><td class="align_center">7.81±.39<sup>Ba</sup></td></tr><tr><td class="align_left">MEP + US</td><td class="align_center">18.22±.10<sup>Af</sup></td><td class="align_center">11.55±.18<sup>Ab</sup></td><td class="align_center">20.31±.20<sup>Bb</sup></td><td class="align_center">14.11±.25<sup>Be</sup></td></tr><tr class="table-tr"><td colspan="5"><hr class="tbody-hr"/></td></tr></table></td></tr><tr class="table-fn"><td><div>Mean values (MPa) with the same letter do not differ significantly from each other. Capital letters indicate significant differences between TSs and between TLs (<span class="nowrap"><svg height="11.7782pt" id="M16" style="vertical-align:-3.42938pt" version="1.1" viewbox="-0.0498162 -8.34882 44.5261 11.7782" width="44.5261pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M570 304C570 398 525 448 414 448C385 448 343 445 312 434L329 511L321 518C297 504 262 482 244 460L233 411C195 397 159 381 128 358L135 332C160 347 189 360 224 373L111 -147C97 -210 84 -218 17 -231L13 -257L254 -247L259 -218L233 -216C183 -212 177 -202 189 -142L218 -1C238 -10 266 -12 283 -12C351 3 429 48 483 105C543 168 570 242 570 304ZM482 289C482 161 380 33 304 33C278 33 248 51 233 69L303 396C326 400 352 403 369 403C428 403 482 380 482 289Z"></path></g><g transform="matrix(.013,0,0,-0.013,11.342,0)"><path d="M512 -3V55L134 254V256L512 456V514L75 281V230L512 -3Z"></path></g><g transform="matrix(.013,0,0,-0.013,22.605,0)"><path d="M241 635C89 635 35 457 35 312C35 153 89 -12 240 -12C390 -12 443 166 443 312C443 466 390 635 241 635ZM238 602C329 602 354 454 354 312C354 172 330 22 240 22C152 22 124 173 124 313S148 602 238 602Z"></path></g><g transform="matrix(.013,0,0,-0.013,28.845,0)"><path d="M113 -12C146 -12 170 11 170 46C170 78 146 103 114 103S58 78 58 46C58 11 82 -12 113 -12Z"></path></g><g transform="matrix(.013,0,0,-0.013,31.809,0)"><path d="M241 635C89 635 35 457 35 312C35 153 89 -12 240 -12C390 -12 443 166 443 312C443 466 390 635 241 635ZM238 602C329 602 354 454 354 312C354 172 330 22 240 22C152 22 124 173 124 313S148 602 238 602Z"></path></g><g transform="matrix(.013,0,0,-0.013,38.049,0)"><path d="M153 550H386L412 615L406 623H120L82 318C104 327 142 338 184 338C294 338 347 275 347 187C347 112 305 39 221 39C160 39 119 71 97 89C88 97 80 96 71 90C59 80 50 67 49 57C48 45 52 36 66 23C80 9 123 -12 169 -12C221 -11 288 15 342 59C403 109 431 165 431 225C431 308 366 395 238 395C212 395 165 379 127 364L153 550Z"></path></g></svg>);</span> lower case letters indicate differences between surface treatments in each column (<span class="nowrap"><svg height="11.7782pt" id="M17" style="vertical-align:-3.42938pt" version="1.1" viewbox="-0.0498162 -8.34882 44.5261 11.7782" width="44.5261pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M570 304C570 398 525 448 414 448C385 448 343 445 312 434L329 511L321 518C297 504 262 482 244 460L233 411C195 397 159 381 128 358L135 332C160 347 189 360 224 373L111 -147C97 -210 84 -218 17 -231L13 -257L254 -247L259 -218L233 -216C183 -212 177 -202 189 -142L218 -1C238 -10 266 -12 283 -12C351 3 429 48 483 105C543 168 570 242 570 304ZM482 289C482 161 380 33 304 33C278 33 248 51 233 69L303 396C326 400 352 403 369 403C428 403 482 380 482 289Z"></path></g><g transform="matrix(.013,0,0,-0.013,11.342,0)"><path d="M512 -3V55L134 254V256L512 456V514L75 281V230L512 -3Z"></path></g><g transform="matrix(.013,0,0,-0.013,22.605,0)"><path d="M241 635C89 635 35 457 35 312C35 153 89 -12 240 -12C390 -12 443 166 443 312C443 466 390 635 241 635ZM238 602C329 602 354 454 354 312C354 172 330 22 240 22C152 22 124 173 124 313S148 602 238 602Z"></path></g><g transform="matrix(.013,0,0,-0.013,28.845,0)"><path d="M113 -12C146 -12 170 11 170 46C170 78 146 103 114 103S58 78 58 46C58 11 82 -12 113 -12Z"></path></g><g transform="matrix(.013,0,0,-0.013,31.809,0)"><path d="M241 635C89 635 35 457 35 312C35 153 89 -12 240 -12C390 -12 443 166 443 312C443 466 390 635 241 635ZM238 602C329 602 354 454 354 312C354 172 330 22 240 22C152 22 124 173 124 313S148 602 238 602Z"></path></g><g transform="matrix(.013,0,0,-0.013,38.049,0)"><path d="M153 550H386L412 615L406 623H120L82 318C104 327 142 338 184 338C294 338 347 275 347 187C347 112 305 39 221 39C160 39 119 71 97 89C88 97 80 96 71 90C59 80 50 67 49 57C48 45 52 36 66 23C80 9 123 -12 169 -12C221 -11 288 15 342 59C403 109 431 165 431 225C431 308 366 395 238 395C212 395 165 379 127 364L153 550Z"></path></g></svg>).</span><br/></div></td></tr></table>

<div>Comparison of bond strength values according to surface treatments and blocks.</div>

BioMed Research International

tab3

Table 3

Table 3: Effects of Two Different Acid Etching and Surface Washing Methods on Bond Strength on Different CAD-CAM Blocks under Aging Protocols 