Some Buddhist statues in the early Heian period were made based on carved wood figures, partially by mokushin-kanshitsuzo to create details such as facial expressions and accessories; therefore, in some cases, it is difficult to categorize them into 'carved wood figure' or 'mokushin-kanshitsuzo' (wood core dry lacquer technique) by rule.
平安時代前期の仏像の中には、木彫り像の一部に木心乾漆技法を併用して表情、装身具などの細部を形づくっている例も多く、「木造」か「木心乾漆造」か、機械的に分けるのが困難な場合もある。