Table 5 Studies on fracture toughness and their results.

From: Systematic review and meta analysis of mechanical properties of 3D printed denture bases compared to milled and conventional materials

Study

Groups (method of fabrication + brand of resin material)

Resin brand

3d Printing information

Fracture Toughness

printer machine

Layer thickness (µm)

Building orientation

Mean

SD

16

3D (Formlabs)

Denture Base Resin LP Formlabs

Inc., MA, USA

Form 3; Formlabs

50

45°

1.276

0.069

M (Merz)

Prepolymerized blanks M-PM, Merz Dental GmbH, Lütjenburg, Germany

4.138

0.092

28

M (RUTHENIUM)

PMMA disc, RUTHENIUM

NEXTDENT 5100

  

97.679

1.877

3D (NEXTDENT)

NEXTDENT denture 3D + pink resin.

49.257

0.254

H (DPI)

Heatcured acrylic DPI

68.631

1.143

36

M (Ivotion (Pink))

Ivotion Base Milled Denture Base disc (Ivoclar Vivadent, Schaan, Liechtenstein)

Denture Base II (Dentca, Torrance CA) and High Impact Denture Base (SprintRay, Los Angeles, CA) bars were fabricated using a DLP printer (Pro 55 S, SprintRay). Lucitone Digital Print (Dentsply Sirona, Charlotte, NC) bars were fabricated using a CLIP printer (M3 printer, Carbon, Redwood City, CA). TrueDent Resin (Stratasys, Rehovot, Israel) bars were fabricated using a material jetting printer (J5 DentaJet printer, Stratasys).

100

0°

1.87

0.09

H (Lucitone 199 (Light))

Lucitone 199 Denture Base Resin (Dentsply Sirona)

2.03

0.12

3D DLP (Dentca Denture Base II)

Denture Base II (Dentca, Torrance CA)

0.54

0.05

3D DLP (High Impact Denture Base)

High Impact Denture Base (SprintRay, Los Angeles, CA)

1.76

0.15

3D CLIP (Lucitone 3D)

Lucitone Digital Print (Dentsply Sirona, Charlotte, NC)

2.01

0.09

3D Material jetting (TrueDent Resin)

TrueDent Resin (Stratasys, Rehovot, Israel)

0.58

0.05

39

3D (from Formlabs)

OP (Original Pink) denture base material (Ref. PKG-RS-F2-DB) from Formlabs (Formlabs, Somerville, MA, USA).

(Formlabs, Somerville, MA, USA)

 

0°

6.304

2.6

M (from Formlabs)

(Original Pink) denture base material (Ref. PKG-RS-F2-DB) from Formlabs (Formlabs,

Somerville, MA, USA)

8.634

1.225

44

M

(M-PM;

Merz Dental GmbH)

(Form 3; Formlabs)

50

45

4.16

0.06

3D

(Denture base RP; Formlabs)

1.3

0.06

48

M (AvaDent)

AvaDent Denture base puck (AvaDent, Global Dental Science Europe, Tilburg, The Netherlands)

rotary table saw (Inca, Injecta, Teufenthal, Switzerland) equipped with a 3 mm thick stainless circular blade (Oertli Werkzeuge, H ̈ori, Switzerland)

100

 

794.322

65.17

3D BP1 (NextDent Base)

NextDent Base (Vertex-Dental B.V., Soesterberg, The Netherlands)

Rapid Shape D30, Rapid Shape GmbH, Heimsheim, Germany)

0°

408.038

262.94

3D PB2 (NextDent Base)

a third-party 3D-printer Form 2, Formlabs, Massachusetts, US

271.334

192.55

3D PBV2 (NextDent Base)

Rapid Shape D30, Rapid Shape GmbH, Heimsheim, Germany)

90°

414.05

161.85

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