東華大學圖書館 |

語系: 繁體中文

說明(常見問題)

回圖書館首頁

手機版館藏查詢

登入

回首頁

切換: 標籤 | MARC模式 | ISBD

FindBook

Google Book

Amazon

博客來

Penetration Depth of Infrared Lasers in Gingival Tissues during Non-Surgical Periodontal Therapy In-Vitro.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Penetration Depth of Infrared Lasers in Gingival Tissues during Non-Surgical Periodontal Therapy In-Vitro./
作者:	Estrin, Nathan.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2021,
面頁冊數:	65 p.
附註:	Source: Masters Abstracts International, Volume: 82-12.
Contained By:	Masters Abstracts International82-12.
標題:	Dentistry. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=28499002
ISBN:	9798515200954

Penetration Depth of Infrared Lasers in Gingival Tissues during Non-Surgical Periodontal Therapy In-Vitro.
Estrin, Nathan.

Penetration Depth of Infrared Lasers in Gingival Tissues during Non-Surgical Periodontal Therapy In-Vitro. - Ann Arbor : ProQuest Dissertations & Theses, 2021 - 65 p.

Source: Masters Abstracts International, Volume: 82-12.

Thesis (M.S.)--State University of New York at Stony Brook, 2021.

This item must not be sold to any third party vendors.

Background: With laser irradiation emerging as a treatment for periodontally involved dentition, it is important to understand the variance of penetration depth among the different laser wavelengths. Aim: The purpose of this study was to evaluate the penetration depth of CO2-, Er:YAG-, and Er,Cr:YSGG-lasers on the bovine gingiva in an in vitro model. Materials and Methods: Four mandibles from freshly slaughtered cows were utilized in this study. Buccal and lingual root debridement (non-surgical periodontal therapy) were performed using three different laser wavelengths, all in pulsed settings. A CO2- (10,600 nm), Er:YAG- (2,940 nm), and Er,Cr:YSGG- (2,780 nm) were utilized to irradiate pockets of two mandibular posterior teeth in each group. Laser power output settings were set to 2 Watts. The posterior teeth were irradiated for 30 seconds buccal and 30 seconds lingual of each tooth for all selected treatment test groups. Instrumentation with curettes was performed as a control group. Gingival full thickness flaps including the entire gingiva were fixed in 10% formalin and stained via Hematoxylin-Eosin and Elastin van Gieson. Sections were examined microscopically and histomorphometrically to evaluate thermal damage, tissue coagulation and statistically compared using mixed effect model with Tukey adjustment.Results: The CO2-pulsed laser irradiation presented a statistically significant lower mean depth compared to Er,Cr:YSGG-laser (p<0.0001). Er,Cr:YSGG-laser had a higher penetration depth compared to Er:YAG-laser (p<0.0001). There was no statistically significant difference found in penetration depth between CO2- and Er:YAG-laser irradiation.

ISBN: 9798515200954Subjects--Topical Terms:

828971
Dentistry.
Subjects--Index Terms:

Laser

Penetration Depth of Infrared Lasers in Gingival Tissues during Non-Surgical Periodontal Therapy In-Vitro.
LDR:02843nmm a2200361 4500 001 2352014
005 20221111120953.5
008 241004s2021 ||||||||||||||||| ||eng d
020 $a 9798515200954
035 $a (MiAaPQ)AAI28499002
035 $a AAI28499002
040 $a MiAaPQ $c MiAaPQ
100 1 $a Estrin, Nathan. $3 3691625
245 1 0 $a Penetration Depth of Infrared Lasers in Gingival Tissues during Non-Surgical Periodontal Therapy In-Vitro.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2021
300 $a 65 p.
500 $a Source: Masters Abstracts International, Volume: 82-12.
500 $a Advisor: Romanos, Georgios E.
502 $a Thesis (M.S.)--State University of New York at Stony Brook, 2021.
506 $a This item must not be sold to any third party vendors.
520 $a Background: With laser irradiation emerging as a treatment for periodontally involved dentition, it is important to understand the variance of penetration depth among the different laser wavelengths. Aim: The purpose of this study was to evaluate the penetration depth of CO2-, Er:YAG-, and Er,Cr:YSGG-lasers on the bovine gingiva in an in vitro model. Materials and Methods: Four mandibles from freshly slaughtered cows were utilized in this study. Buccal and lingual root debridement (non-surgical periodontal therapy) were performed using three different laser wavelengths, all in pulsed settings. A CO2- (10,600 nm), Er:YAG- (2,940 nm), and Er,Cr:YSGG- (2,780 nm) were utilized to irradiate pockets of two mandibular posterior teeth in each group. Laser power output settings were set to 2 Watts. The posterior teeth were irradiated for 30 seconds buccal and 30 seconds lingual of each tooth for all selected treatment test groups. Instrumentation with curettes was performed as a control group. Gingival full thickness flaps including the entire gingiva were fixed in 10% formalin and stained via Hematoxylin-Eosin and Elastin van Gieson. Sections were examined microscopically and histomorphometrically to evaluate thermal damage, tissue coagulation and statistically compared using mixed effect model with Tukey adjustment.Results: The CO2-pulsed laser irradiation presented a statistically significant lower mean depth compared to Er,Cr:YSGG-laser (p<0.0001). Er,Cr:YSGG-laser had a higher penetration depth compared to Er:YAG-laser (p<0.0001). There was no statistically significant difference found in penetration depth between CO2- and Er:YAG-laser irradiation.
590 $a School code: 0771.
650 4 $a Dentistry. $3 828971
653 $a Laser
653 $a Laser-irradiation
653 $a Laser-therapy
653 $a Non-surgical therapy
653 $a Periodontal therapy
653 $a Regeneration
690 $a 0567
710 2 $a State University of New York at Stony Brook. $b Oral Biology and Pathology. $3 3182948
773 0 $t Masters Abstracts International $g 82-12.
790 $a 0771
791 $a M.S.
792 $a 2021
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=28499002