The effect of dietary consistency on bone mass and turnover in the growing rat mandible

https://doi.org/10.1016/0003-9969(91)90075-6Get rights and content

Abstract

Hard and soft diets were fed to weanling rats for up to 8 weeks. Some animals were switched after 4 weeks to the opposite diet. A histomorphometric study of bone formation activity at the mandibular ramus, body, and condyle was made after in vivo fluorochrome labelling. Mineral apposition rates at the lateral and inferior periosteal surfaces of the ramus were lower in the soft diet than in the hard diet animals. The rate of bone formation at the lateral periosteal surface of the ramus was significantly lower in soft than in hard diet animals. The medial periosteal surface of the ramus sometimes changed to bone formation in the soft diet groups. Condylar cartilage zones were somewhat thinner in soft diet groups. In the mandibular body, differences due to dietary consistency were less marked than near the gonial angle. Adaptation of periosteal bone and condylar cartilage to a new dietary consistency occurred within 4 weeks of switching. These results suggest that lateral and inferior periosteal bone growth of the ramus and condylar elongation were slowed in rats consuming soft diets. Decreased functional force during rapid mandibular bone growth causes changes in shape. The changes are due to regional decreases in osteoblast function, realignment of bone formation surfaces in the ramus area, and slowed growth in the condylar cartilage.

References (33)

  • R.S. Corrucini et al.

    Occlusal variation in Chinese immigrants to the United Kingdom and their offspring

    Archs oral Biol.

    (1984)
  • H. Fukazawa et al.

    A morphological study on the growth and development of the rat mandible after bi-resection of the jaw closing muscles

    J. Japan Orthod. Soc.

    (1982)
  • K. Hanihara et al.

    Microevolution and tooth to denture base discrepancy in Japanese dentition

    J. Anthrop. Soc. Nippon

    (1981)
  • R.J. Hinton et al.

    Response of the mandibular joint to loss of incisal function in the rat

    Acta Anal.

    (1986)
  • S.L. Horowits et al.

    Modification of skull and jaw architecture following removal of the masseter muscle in the rat

    Am. J. phys. Anthrop.

    (1955)
  • N. Inoue

    Tooth to denture base discrepancy in human evolution

    J. Anthrop. Soc. Nippon

    (1980)
  • Cited by (84)

    • Contact ratio and adaptations in the maxillary and mandibular dentoalveolar joints in rats and human clinical analogs

      2022, Journal of the Mechanical Behavior of Biomedical Materials
      Citation Excerpt :

      The changes in human craniofacial bone were identified as age- and anatomy-specific observations (Fig. 4). Tooth movement, and differences in X-ray intensities of maxillary and mandibular bone pre and post-OTM, indicated that maxillary and mandibular bone adaptations are anatomy-specific (Mavropoulos et al. 2004a, 2004b, 2005; Yamada and Kimmel, 1991). Bone adaptations observed as changes in gray scales of X-ray intensities were dependent on the tooth type, incisors (thinner cortical bone), and molars (thicker cortical bone), and these teeth displaced more in the mandible but illustrated a larger variance in the X-ray intensity (Fig. 4).

    • The impact of dietary consistency on structural craniofacial components: Temporomandibular joint/condyle, condylar cartilage, alveolar bone and periodontal ligament. A systematic review and meta-analysis in experimental in vivo research

      2018, Archives of Oral Biology
      Citation Excerpt :

      In the rest (n = 18) of the studies (Barber, Green, & Cox, 1963; Beecher & Corruccini, 1981a; Bouvier & Hylander, 1984; Bouvier & Zimny, 1987; Bouvier, 1988; Bresin, Johansson, & Kiliaridis, 1994, 1999; Ito, Mitani, & Kim, 1988; Kiliaridis, Bresin, Holm, & Strid, 1996; Mavropoulos, Odman, Ammann, & Kiliaridis, 2010; Odman, Mavropoulos, & Kiliaridis, 2008; Orajarvi et al., 2011, 2012; Orajarvi, 2015; Stahl & Dreizen, 1964; Tiilikainen, Raustia, & Pirttiniemi, 2011; Watt & Williams, 1951; Yamada & Kimmel, 1991) no obvious randomization was done or allocation was implemented by convenience. The country of origin (according to corresponding author affiliation) of the studies were Japan (Endo et al., 1998; Enomoto et al., 2010, 2014; Hichijo et al., 2014; Ikeda et al., 2014; Ito et al., 1988; Maki et al., 2002; Shimizu et al., 2013; Tanaka et al., 2007; Yamada & Kimmel, 1991), United States (Abed et al., 2007; Barber et al., 1963; Beecher & Corruccini, 1981a; Bouvier & Zimny, 1987; Bouvier, 1988; Hinton & Carlson, 1986; Stahl & Dreizen, 1964), Finland (Orajarvi et al., 2011, 2012; Orajarvi, 2015; Tiilikainen et al., 2011), Sweden (Bresin et al., 1994, 1999; Kiliaridis et al., 1996; Odman et al., 2008), Canada (McFadden et al., 1986; Watt & Williams, 1951), Switzerland (Kiliaridis, Thilander, Kjellberg, Topouzelis, & Zafiriadis, 1999; Mavropoulos et al., 2010), Brazil (Guerreiro et al., 2013), India (Vaid et al., 2002), Puerto Rico (Bouvier & Hylander, 1984) and United Kingdom (Kingsmill et al., 2010). In the subgroup of studies dealing with temporomandibular joint/condyle of rats (Barber et al., 1963; Beecher & Corruccini, 1981a; Bouvier & Hylander, 1984; Bouvier & Zimny, 1987; Bouvier, 1988; Bresin et al., 1999; Endo et al., 1998; Guerreiro et al., 2013; Hinton & Carlson, 1986; Ikeda et al., 2014; Kiliaridis et al., 1996, 1999; Maki et al., 2002; McFadden et al., 1986; Odman et al., 2008; Tanaka et al., 2007; Vaid et al., 2002; Watt & Williams, 1951; Yamada & Kimmel, 1991) the sample size ranged from 3 to 30 for both the hard and the soft diet animals The sample size for rat condylar cartilage (Bouvier, 1988; Bouvier & Hylander, 1984; Endo et al., 1998; Hichijo et al., 2014; Hinton & Carlson, 1986; Ikeda et al., 2014; Kiliaridis et al., 1999; Orajarvi et al., 2011, 2012; Orajarvi, 2015; Tiilikainen et al., 2011; Vaid et al., 2002; Yamada & Kimmel, 1991) ranged from 3 to 16, while for the mandibular alveolar bone (Abed et al., 2007; Bresin et al., 1999; Kiliaridis et al., 1996; Kingsmill et al., 2010; Mavropoulos et al., 2010; Odman et al., 2008; Shimizu et al., 2013; Tanaka et al., 2007; Watt & Williams, 1951; Yamada & Kimmel, 1991), six to 30 animals were recruited.

    View all citing articles on Scopus
    View full text