Table 2.

Parameters examined in the included studies for descriptive analysis and meta-analysis.

Ref.	CIELab-based translucency	CIEDE2000-based translucency	Contrast ratio	Light transmittance	Three-point flexural strength	Biaxial flexural strength	Fracture toughness	Hardness
Almazdi et al. [21]	-	-	-	-	○	-	-	-
Kim and Kim [42]	-	○	-	-	-	-	-	-
Jerman et al. [13]	-	-	-	-	○	-	-	-
Presenda et al. [60]	-	-	-	-	-	-	*	*
Pekkan (2021)[84]	○	-	-	-	-	-	-	-
Presenda et al. [56]	-	-	-	-	-	-	○	○
Yılmaz Savaş and Akın [53]	-	○	○	-	-	-	-	-
Kim et al. [58]	-	-	-	○	-	-	-	-
Marinis et al. [39]	-	-	-	-	-	-	○	-
Presenda et al. [59]	-	-	-	-	-	-	*	*
Presenda et al. [99]	-	-	-	-	-	-	-	*
Jansen et al. [41]	-	-	-	*	*	-	-	-
Al-Zordk and Saker (2020)[85]	○	-	○	-	-	-	-	-
Liu et al. [36]	○(+)	-	-	-	-	○	-	-
Yang et al. [86]	*	-	-	-	*	*	-	*
Cokic et al. [22]	○(+)	-	○	-	-	○	○(+)	○(+)
Ai et al. [61]	-	-	-	-	*	-	*	*
Borrell et al. [34]	-	-	-	-	-	-	*	*
Luz et al. [18]	○(+)	-	-	-	-	○(+)	-	-
Liu et al. [87]	*	-	-	-	-	-	-	-
Li et al. [54]	-	-	-	*	○	-	○	○
Lawson and Maharishi )[16]	-	○	-	-	○	-	-	-
Moratal et al. [19]	-	-	*	-	-	-	*	*
Jiang et al. [52]	○	-	-	-	-	-	-	-
Han et al. [55]	-	-	-	-	-	○	○	○
Ribeiro et al. (2019)[57]	-	-	-	-	-	-	○	○
Total	8	3	4	3	7	5	11	12
Numbers of full information articles	6	3	3	1	4	4	6	5
Percentage of full information articles	75%	100%	75%	33.3%	57.1%	80%	54.5%	41.7%
Number of datasets	22	7	6	1	9	7	8	6

○: With full information for meta-analysis; * : Lack of essential information for meta-analysis; ○(+): Information directly obtained from the author.