Table 3 Comparative compendium of the included research articles.

From: The clinical performance of bulk-fill versus the incremental layered application of direct resin composite restorations: a systematic review

Study

Type of Teeth and Restoration

Groups

Teeth Per Group

Etching Method

Adhesive System

Resin

Placement Technique

Salem et al., 202236

Molar

Bulk Resin + Conventional Resin

18

Ultra-Etch selective enamel etching and rinsing

G-premio Bond

EverX posterior + G-ænial Sculpt

Two-step Bulk

(Class II)

Conventional Resin

18

G-ænial Sculpt

Incremental

Endo Hoshino et al., 202234

Premolar (94) and Molar (65)

Bulk Resin + Conventional Resin

53

35% phosphoric acid gel (Ultra-etch) etching and rinsing

Adper Single Bond 2

Filtek Bulk Fill Flow + Filtek Z350XT

Two-step Bulk

(Class II)

Bulk Resin + Conventional Resin

53

XP Bond2

SureFil SDR + TPH3

Two-step Bulk

Conventional Resin

53

Peak Universal

Amelogen Plus

Incremental

Sekundo et al., 202237

Premolar (56) and Molar (64)

Bulk resin

60

35% phosphoric acid (Scotchbond Universal Etchant)

selective enamel etching and rinsing

3M Scotchbond Universal adhesive

Filtek Bulk Fill Posterior

Bulk

(Class II)

Conventional resin

60

Filtek Supreme XTE

Incremental

Hardan et al., 20216

Premolar and Molar

Bulk resin

30

32% phosphoric acid gel (Scotchbond universal)

etching and rinsing

Two-step etch-and-rinse

Adper Single Bond

Filtek bulk-fill

Posterior Restorative

Bulk

(Class I)

Conventional resin

30

Filtek Z250XT

Incremental

Durão et al., 202132

Premolar (46) and Molar (92)

Bulk resin

46

37% phosphoric acid selective enamel etching and rinsing

Clearfil SE Bond

Tetric EvoCeram bulk-fill

Bulk

(Class I [101] and Class II [37])

Bulk resin

46

Filtek Bulk Fill

Bulk

Conventional resin

46

Filtek Z250 XT

Incremental

Balkaya & Arslan, 202038

Premolar (51) and Molar (58)

Bulk resin

38

Self-etch

Single Bond

Universal

adhesive

Filtek Bulk Fill Posterior Restorative

Bulk

(Class II)

Conventional resin

37

Charisma Smart Composite

Incremental

Frascino et al., 202033

Premolar (94) and Molar (65)

Bulk Resin + Conventional Resin

53

35% phosphoric acid gel etching and rinsing

XP Bond

SureFil SDR + TPH3

Two-step Bulk (4 mm + 2 mm)

(Class II)

Bulk Resin + Conventional Resin

53

Adper Single Bond 2

Filtek Bulk Fill Flow + Filtek Z350XT

Two-step Bulk (4 mm + 2 mm)

Conventional Resin

53

Peak Universal

Amelogen Plus

Incremental

Al-Sheikh, 201935

Molar

Bulk resin

40

Tetric N-Etch etching and rinsing

Tetric N-Bond Total-Etch

Tetric EvoCeram bulk-fill

Bulk

(Class I)

Conventional resin

40

Tetric EvoCeram

Incremental

Heck et al., 201839

Molar

Bulk resin

46

Self-etch

Xeno III

QuiXfil

Bulk

(Class II [82] and Class I [14])

Conventional resin

50

37% phosphoric acid etching and rinsing

Syntac classic

Tetric N-Ceram

Incremental

Atabek et al., 201740

Molar

Bulk resin

30

Self-etch

OptiBond All-In-One

SonicFill

Bulk with sonic activation

(Class I)

Conventional resin

30

Herculite Ultra

Incremental

Bayraktar et al., 201741

Premolar (95) and Molar (105)

Bulk resin

50

Self-etch

AdheSE Bond

Tetric EvoCeram Bulk-Fill

Bulk

(Class II)

Bulk resin+ Conventional resin

50

Single Bond Universal

Filtek Bulk-Fill Flowable +Filtek P60

Two-step Bulk (4 mm + 2mm)

Bulk resin

50

OptiBond All-In-One

SonicFill

Bulk with sonic activation

Conventional resin

50

Clearfil SE Bond

Clearfil Photo Posterior

Incremental

Colak et al., 201742

Premolar (24) and Molar (50)

Bulk resin

37

Self-etch

AdheSE Bond

Tetric EvoCeram bulk-fill

Bulk

(Class II)

Conventional resin

37

Tetric EvoCeram

Incremental

Karaman et al., 201743

Premolar (41) and Molar (53)

Bulk resin + Conventional resin

47

35% phosphoric acid gel etching and rinsing

Adper Single Bond 2

x-tra base + GrandioSO

Two-step Bulk (4 mm+ 2 mm)

(Class II)

Conventional resin

47

Aelite Flo + GrandioSO

Incremental

Van Dijken & Pallesen, 201744

Premolar (47) and Molar (59)

Bulk resin + Conventional resin

53

Self-etch

XenoV

SDR flowable + Ceram X mono

Two-step Bulk (4 mm+ 2 mm)

(Class I and Class II)

Conventional resin

53

Ceram X mono

Incremental

Yazici et al., 201745

Premolar (54) and Molar (50)

Bulk resin

52

Etching and rinsing

Excite F

Tetric EvoCeram Bulk Fill

Bulk

(Class II)

Conventional resin

52

Adper Single Bond 2

Filtek Ultimate

Incremental

Alkurdi & Abboud, 201646

Premolar and Molar

Bulk resin

20

37% phosphoric acid etching and rinsing

Tetric N-Bond

Tertic N Ceram Bulk Fill

Bulk

(Class II)

Bulk resin

20

SonicFill

Bulk with sonic activation

Conventional resin

20

Tetric Evo Ceram

Incremental

Van Dijken & Pallesen, 201647

Premolar (67) and Molar (133)

Bulk Resin + Conventional resin

100

Self-etch

XenoV

Ceram X mono

Incremental

(Class II [124] and Class I [76])

Conventional Resin

100

SDR flowable + Ceram X mono

Two-step Bulk (4 mm + 2 mm)

Manhart et al., 201048

Molar

Bulk resin

46

37% phosphoric acid etching and rinsing

Xeno III

QuiXfil

Bulk

(Class II and Class I)

Conventional resin

50

Syntac classic

Tetric Ceram

Incremental