Effect of Guiding Sleeve Design on Intraosseous Heat Generation During Implant Site Preparation (In Vitro Study)

Ashry, Amal; El‐Attar, Mohamed S.; Elsamni, Osama A.; Soliman, Ingy S.

doi:10.1111/jopr.13370

Cited by 9 publications

(9 citation statements)

References 53 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Cooling efficiency may be further decreased with the use of navigation guides. To overcome this negative effect, a gap between the drill guide sleeve and the gingiva is often maintained during the fabrication of dental implant surgical guides to ensure the access of the coolant to the drill [ 5 ]. However, due to the flexibility of narrower and longer drills used in endodontics, this is rarely possible during navigated endodontic drilling.…”

Section: Introductionmentioning

confidence: 99%

Effect of different parameters utilized for image guided endodontic root canal preparation on temperature changes: an in vitro study

Rajnics,

Mandel,

Nagy

et al. 2024

BMC Oral Health

View full text Add to dashboard Cite

Background Navigated endodontics is a cutting-edge technology becoming increasingly more accessible for dental practitioners. Therefore, it is necessary to clarify the ideal technical parameters of this procedure to prevent collateral damage of the surrounding tissues. There is a limited number of studies available in published scientific literature referencing the possible collateral thermal damage due to high-speed rotary instruments used in guided endodontic drilling. The aim of our study was to investigate the different drilling parameters and their effect upon the temperature elevations measured on the outer surface of teeth during guided endodontic drilling. Methods In our in vitro study, 72 teeth with presumably narrow root canals were prepared using a guided endodontic approach through a 3D-printed guide. Teeth were randomly allocated into six different test groups consisting of 12 teeth each, of which, four parameters affecting temperature change were investigated: (a) access cavity preparation prior to endodontic drilling, (b) drill speed, (c) cooling, and (d) cooling fluid temperature. Temperature changes were recorded using a contact thermocouple electrode connected to a digital thermometer. Results The highest temperature elevations (14.62 °C ± 0.60 at 800 rpm and 13.76 °C ± 1.24 at 1000 rpm) were recorded in the groups in which drilling was performed without prior access cavity preparation nor without a significant difference between the different drill speeds (p = 0.243). Access cavity preparation significantly decreased temperature elevations (p < 0.01) while drilling at 800 rpm (8.90 °C ± 0.50) produced significantly less heating of the root surface (p < 0.05) than drilling at 1000 rpm (10.09 °C ± 1.32). Cooling significantly decreased (p < 0.01) temperature elevations at a drill speed of 1000 rpm, and cooling liquid temperatures of 4–6 °C proved significantly (p < 0.01) more beneficial in decreasing temperature elevations (1.60 °C ± 1.17) than when compared with room temperature (21 °C) liquids (4.01 °C ± 0.22). Conclusions Based on the results of our study, guided endodontic drilling at drill speeds not exceeding 1000 rpm following access cavity preparation, with constant cooling using a fluid cooler than room temperature, provides the best results in avoiding collateral thermal damage during navigated endodontic drilling of root canals.

show abstract

Section: Introductionmentioning

confidence: 99%

Effect of different parameters utilized for image guided endodontic root canal preparation on temperature changes: an in vitro study

Rajnics,

Mandel,

Nagy

et al. 2024

BMC Oral Health

View full text Add to dashboard Cite

show abstract

“…Another study showed that greater damage occurred when heat at 53°C was generated for 1 minute [ 8 ]. Permanent cessation of blood flow at temperatures above 60°C has been proven to cause necrosis of the bone [ 9 ]. In previous studies, the use of a surgical guide led to higher heat generation; however, the highest recorded temperature was below the bone necrosis threshold [ 10 ].…”

Section: Introductionmentioning

confidence: 99%

“…Various efforts have been made to achieve effective irrigation while using a surgical guide, including modification of the sleeve design. In a study on heat generation according to the sleeve design (cylindrical, open C-shaped, and modified cylindrical), the open C-shaped and modified cylindrical sleeves showed better drill diameters and measurement depths and led to a significantly lower temperature increase regardless of the irrigation temperature [ 9 ].…”

Section: Introductionmentioning

confidence: 99%

Thermal changes during implant site preparation with a digital surgical guide and slot design drill: an ex vivo study using a bovine rib model

Choi

Lee

et al. 2022

J Periodontal Implant Sci

View full text Add to dashboard Cite

Purpose In this study, we aimed to evaluate the degree of heat generation when a novel drill design with an irrigation slot was used with metal sleeve-free (MF) and metal sleeve-incorporated (MI) surgical guides in an environment similar to that of the actual oral cavity. Methods A typodont with a missing mandibular right first molar and 21 bovine rib blocks were used. Three-dimensional-printed MF and MI surgical guides, designed for the placement of internal tapered implant fixtures, were used with slot and non-slot drills. The following groups were compared: group 1, MI surgical guide with slot drill; group 2, MI surgical guide with a non-slot drill; and group 3, MF surgical guide with a slot drill. A constant-temperature water bath at 36°C was used. The drilling was performed in 6 stages, and the initial, highest, and lowest temperatures of the cortical bone were measured at each stage using a non-contact infrared thermometer. Results There were no temperature increases above the initial temperature in any drilling procedure. The only significant difference between the non-slot and slot groups was observed with the use of the first drill in the MI group, with a higher temperature in the non-slot group ( P =0.012). When the heat generation during the first and the second drilling was compared in the non-slot group, the heat generation during the first drilling was significantly higher ( P< 0.001), and there was no significant difference in heat generation between the drills in the slot group. Conclusions Within the limitations of this study, implant-site preparation with the surgical guide showed no critical increase in the temperature of the cortical bone, regardless of whether there was a slot in the drill. In particular, the slotted drill had a cooling effect during the initial drilling.

show abstract

“…Considering the drilling technique for the implant bed preparation, parameters such as thrust force, feed rate, irrigation, drilling speed, and operator experience have been investigated [12][13][14][15][16][17][18]. Thrust force and feed rate are influenced by the operator, and it seems that novices produce higher forces and feed rates compared to experts, resulting in higher temperatures during bone drilling [12,13].…”

Section: Introductionmentioning

confidence: 99%

“…Irrigation is essential for controlling the temperature during high-speed drilling. Specifically, external irrigation is more efficient for cooling than internal irrigation; high volumes of irrigation reduce the temperature more than low volumes of irrigation [14]; and reduced coolant temperature controls the thermal increase better than higher coolant temperatures [15,16]. If the coolant cannot reach the targets (drill surface and bone), the temperature elevation is not controlled.…”

Section: Introductionmentioning

confidence: 99%

Heat Accumulation in Implant Inter-Osteotomy Areas—An Experimental In Vitro Study

Tanner

Romanos

et al. 2022

Biomedicines

View full text Add to dashboard Cite

To examine the influence of the distance between adjacent implant osteotomies on heat accumulation in the inter-osteotomy area, two experimental groups with 15 pairs of osteotomies in Type II polyurethane blocks were compared: 7 mm inter-osteotomy separations (Group A, n = 15) and 14 mm inter-osteotomy separations (Group B, n = 15). An infrared thermographic analysis of thermal changes in the inter-osteotomy area was completed. A one-way analysis of variance (ANOVA) and Fisher post-test were used to determine group differences. Higher temperatures were recorded in Group A at the coronal and middle levels compared to the apical level in both groups. The temperature reached max temperatures at T80s and T100s. In Group A, the threshold for thermal necrosis was exceeded. Meanwhile, Group B did not reach the threshold for thermal necrosis. Preparing adjacent implant osteotomies in dense bone with a 7 mm separation between their centers increases the temperature in the inter-osteotomy area, exceeding the threshold for bone thermal necrosis; meanwhile, increasing the distance between osteotomies reduces the thermal accumulation and the risk for thermal necrosis.

show abstract

Effect of Guiding Sleeve Design on Intraosseous Heat Generation During Implant Site Preparation (In Vitro Study)

Cited by 9 publications

References 53 publications

Effect of different parameters utilized for image guided endodontic root canal preparation on temperature changes: an in vitro study

Effect of different parameters utilized for image guided endodontic root canal preparation on temperature changes: an in vitro study

Thermal changes during implant site preparation with a digital surgical guide and slot design drill: an ex vivo study using a bovine rib model

Heat Accumulation in Implant Inter-Osteotomy Areas—An Experimental In Vitro Study

Contact Info

Product

Resources

About